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2011-08-22microblaze-user: Deliver SIGFPE on div by zeroEdgar E. Iglesias1-0/+7
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori3-18/+18
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-05Avoid allocating TCG resources in non-TCG modeJan Kiszka1-1/+2
Do not allocate TCG-only resources like the translation buffer when running over KVM or XEN. Saves a "few" bytes in the qemu address space and is also conceptually cleaner. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-30user: Restore debug usage message for '-d ?' in user mode emulationPeter Maydell1-5/+6
The code which prints the debug usage message on '-d ?' for *-user has to come before the check for "not enough arguments", so that "qemu-foo -d ?" prints the list of possible debug log items rather than the generic usage message. (This was inadvertently broken in commit c235d73.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-07-25Wrap recv to avoid warningsBlue Swirl1-1/+1
Avoid warnings like these by wrapping recv(): CC slirp/ip_icmp.o /src/qemu/slirp/ip_icmp.c: In function 'icmp_receive': /src/qemu/slirp/ip_icmp.c:418:5: error: passing argument 2 of 'recv' from incompatible pointer type [-Werror] /usr/local/lib/gcc/i686-mingw32msvc/4.6.0/../../../../i686-mingw32msvc/include/winsock2.h:547:32: note: expected 'char *' but argument is of type 'struct icmp *' Remove also casts used to avoid warnings. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-19Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori21-51/+482
2011-07-14set ELF_HWCAP for SPARC and SPARC64Artyom Tarasenko1-2/+4
setting ELF_HWCAP fixes dynamic library loading for Linux/sparc64 This patch allows loading busybox from Debian 6 initrd Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-13linux-user/signal.c: Rename s390 target_ucontext fields to fix ia64Peter Maydell1-15/+15
The ia64 sys/ucontext.h defines macros 'uc_link', 'uc_sigmask' and 'uc_stack'. Rename the s390 target_ucontext struct members to tuc_*, bringing them into line with the other targets and fixing a compile failure on ia64 hosts caused by this clash. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-13linux-user: make MIPS and ARM eabi use same argument reorderingRiku Voipio1-20/+18
MIPS uses similar calling convention than ARM eabi, where when using 64-bit values some registers are skipped. This patch makes MIPS and ARM eabi share the argument reordering code. This affects ftruncate64, creating insane sized fails (or just failing). Cc: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-13linux-user: correct syscall 123 on sh4Riku Voipio1-1/+1
As reported by Cédric VINCENT: The syscall #123 on SH4 should be "TARGET_NR_cacheflush" instead of "TARGET_NR_modify_ldt" [1]. The only consequence of this misnaming is that many "Unsupported syscall" warnings are issued when emulating JIT compilers. Reported-by: Cédric VINCENT <cedric.vincent@st.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-12mips: rlimit codes are not the sameWesley W. Terpstra2-3/+76
The codes for get/setrlimit differ between linux target platforms. This patch adds conversion. This is important else programs (rsyslog, python, ...) can go into a near infinite loop trying to close all the file descriptors from 0 to -1. Signed-off-by: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-12mips: rlimit incorrectly converts valuesWesley W. Terpstra1-5/+17
Byte swap was applied in the wrong order with testing for RLIM_INFINITY. On mips bigendian from an amd64 system this results in infinity being misinterpretted as 2^31-1. This is a serious bug because it causes setrlimit stack size to kill all child processes. This means (for example) that 'make' can run no children. The mechanism of failure: 1. parent sets stack size rlimit to 'infinity' 2. qemu screws this value up 3. child process fetches stack size as a large (but non-infinite) value 4. qemu tries to allocate stack before execution 5. stack allocation fails (too big) and child process dies Signed-off-by: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-12mips: null pointer deref should segfaultWesley W. Terpstra1-0/+2
Dereferencing a null pointer causes an exception 0xC (EXCP_AdEL) instead of EXCP_TLBL. This should also trigger a segfault. Signed-off-by: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-12mips: missing syscall returns wrong errnoWesley W. Terpstra1-1/+1
Return -TARGET_ENOSYS instead of -ENOSYS from linux-user/main.c * Caused strange 'Level 2 synchronization messages' instead of correctly reporting the syscall was missing. * Made glibc simply fail instead of using older syscalls Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Wesley W. Terpstra <terpstra@debian.org>
2011-07-12mips: sigaltstack argsWesley W. Terpstra1-1/+1
The syscall sigaltstack takes two parameters, not zero. This patch should have no impact as only values above 4 influence the runtime behaviour. Nevertheless, it is wrong. Signed-off-by: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user/syscall.c: Enforce pselect6 sigset size restrictionsPeter Maydell1-0/+5
Enforce the same restriction on the size of the sigset passed to pselect6 as the Linux kernel does. This is both correct and silences a gcc 4.6 warning about a write-only variable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user: Implement prlimit64 syscallPeter Maydell2-0/+47
Implement the prlimit64 syscall. Slightly modified to apply upstream -Riku Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user: Add syscall numbers from kernel 2.6.39.2Peter Maydell16-5/+253
Add syscall numbers for new syscall numbers; this brings us into line with Linux 2.6.39.2. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user: Add support for even more FB ioctlsCédric VINCENT3-0/+23
This patch was validated with programs from DirectFB-1.0 and WebKit/DirectFB. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user: Add support for more VT ioctlsCédric VINCENT3-0/+15
DirectFB-1.0 uses at least two of the four added ioctls, and the two others were added for completeness. This patch was validated with the program "vlock -all/-new". Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-11linux-user: Add support for KD...LED ioctlsCédric VINCENT2-0/+8
DirectFB-1.0 uses at least one of the four added ioctls, and the three others were added for completeness. This patch was validated with the program "setleds" and the following Makefile: SETLEDS_INIT = setleds -v -num -caps -scroll SETLEDS_TESTS = sh -c ' \ setleds -v +num +caps +scroll; \ setleds -v -num -caps -scroll; \ setleds -v +num -caps -scroll; \ setleds -v +num +caps -scroll; \ setleds -v +num +caps +scroll; \ setleds -v -num +caps +scroll; \ setleds -v -num -caps +scroll; \ setleds -v -num -caps -scroll' SETLEDS_HOST = setleds SETLEDS_QEMU = "SETLEDS_QEMU not set" .PHONY: setleds_tests setleds_tests: rm -f setleds.host setleds.target $(SETLEDS_INIT:setleds=$(SETLEDS_HOST)) $(SETLEDS_TESTS:setleds=$(SETLEDS_HOST)) >> setleds.host $(SETLEDS_INIT:setleds=$(SETLEDS_QEMU)) $(SETLEDS_TESTS:setleds=$(SETLEDS_QEMU)) >> setleds.target cmp setleds.host setleds.target Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-06-28user: Fix -d debug logging for usermode emulationEdgar E. Iglesias1-1/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-06-27Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori7-171/+348
2011-06-26Remove exec-all.h include directivesBlue Swirl1-2/+1
Most exec-all.h include directives are now useless, remove them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-21linux-user: Fix sync_file_range on 32bit mipsRiku Voipio1-0/+5
As noticed while looking at "Bump do_syscall() up to 8 syscall arguments" patch, sync_file_range uses a pad argument on 32bit mips. Deal with it by reading the correct arguments when on mips. Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user/signal.c: Remove unused fenabPeter Maydell1-2/+5
Remove fenab as it is only written, never used. Add a FIXME comment about the discrepancy between our behaviour and that of the Linux kernel for this routine. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user/signal.c: Remove only-ever-set variable fpu_save_addrPeter Maydell1-5/+5
Move the access of fpu_save into the commented out skeleton code for restoring FPU registers on SPARC sigreturn, thus silencing a gcc 4.6 "variable set but never used" warning. (This doesn't affect the calculation of 'err' because in fact __get_user() can never fail.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Bump do_syscall() up to 8 syscall argumentsPeter Maydell3-17/+31
On 32 bit MIPS a few syscalls have 7 arguments, and so to call them via NR_syscall the guest needs to be able to pass 8 arguments to do_syscall(). Raise the number of arguments do_syscall() takes accordingly. This fixes some gcc 4.6 compiler warnings about arg7 and arg8 variables being set and never used. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21flatload: memp was a write-only variableJuan Quintela1-3/+0
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21flatload: end_code was only used in a debug messageJuan Quintela1-3/+2
Just unfold its definition in only use. Signed-off-by: Juan Quintela <quintela@redhat.com> [peter.maydell@linaro.org: fixed typo in the debug code, added parentheses to fix precedence issue] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: syscall should use sanitized arg1Juan Quintela1-2/+2
Looking at the other architectures, we should be using "how" not "arg1". Signed-off-by: Juan Quintela <quintela@redhat.com> [peter.maydell@linaro.org: remove unnecessary initialisation of how] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21syscall: really return ret codeJuan Quintela1-4/+4
We assign ret with the error code, but then return 0 unconditionally. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linuxload: id_change was a write only variableJuan Quintela1-24/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Define AT_RANDOM to support target stack protection mechanism.Laurent ALFONSI1-1/+20
The dynamic linker from the GNU C library v2.10+ uses the ELF auxiliary vector AT_RANDOM [1] as a pointer to 16 bytes with random values to initialize the stack protection mechanism. Technically the emulated GNU dynamic linker crashes due to a NULL pointer derefencement if it is built with stack protection enabled and if AT_RANDOM is not defined by the QEMU ELF loader. [1] This ELF auxiliary vector was introduced in Linux v2.6.29. This patch can be tested with the code above: #include <elf.h> /* Elf*_auxv_t, AT_RANDOM, */ #include <stdio.h> /* printf(3), */ #include <stdlib.h> /* exit(3), EXIT_*, */ #include <stdint.h> /* uint8_t, */ #include <string.h> /* memcpy(3), */ #if defined(__LP64__) || defined(__ILP64__) || defined(__LLP64__) # define Elf_auxv_t Elf64_auxv_t #else # define Elf_auxv_t Elf32_auxv_t #endif main(int argc, char* argv[], char* envp[]) { Elf_auxv_t *auxv; /* *envp = NULL marks end of envp. */ while (*envp++ != NULL); /* auxv->a_type = AT_NULL marks the end of auxv. */ for (auxv = (Elf_auxv_t *)envp; auxv->a_type != AT_NULL; auxv++) { if (auxv->a_type == AT_RANDOM) { int i; uint8_t rand_bytes[16]; printf("AT_RANDOM is: 0x%x\n", auxv->a_un.a_val); memcpy(rand_bytes, (const uint8_t *)auxv->a_un.a_val, sizeof(rand_bytes)); printf("it points to: "); for (i = 0; i < 16; i++) { printf("0x%02x ", rand_bytes[i]); } printf("\n"); exit(EXIT_SUCCESS); } } exit(EXIT_FAILURE); } Changes introduced in v2 and v3: * Fix typos + thinko (AT_RANDOM is used for stack canary, not for ASLR) * AT_RANDOM points to 16 random bytes stored inside the user stack. * Add a small test program. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Signed-off-by: Laurent ALFONSI <laurent.alfonsi@st.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: add pselect6 syscall supportMike Frysinger1-19/+130
Some architectures (like Blackfin) only implement pselect6 (and skip select/newselect). So add support for it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Fix the computation of the requested heap sizevincent1-8/+29
There were several remaining bugs in the previous implementation of do_brk(): 1. the value of "new_alloc_size" was one page too large when the requested brk was aligned on a host page boundary. 2. no new pages should be (re-)allocated when the requested brk is in the range of the pages that were already allocated previsouly (for the same purpose). Technically these pages are never unmapped in the current implementation. The problem/fix can be reproduced/validated with the test-suite above: #include <unistd.h> /* syscall(2), */ #include <sys/syscall.h> /* SYS_brk, */ #include <stdio.h> /* puts(3), */ #include <stdlib.h> /* exit(3), EXIT_*, */ #include <stdint.h> /* uint*_t, */ #include <sys/mman.h> /* mmap(2), MAP_*, */ #include <string.h> /* memset(3), */ int main() { int exit_status = EXIT_SUCCESS; uint8_t *current_brk = 0; uint8_t *initial_brk; uint8_t *new_brk; uint8_t *old_brk; int failure = 0; int i; void test_brk(int increment, int expected_result) { new_brk = (uint8_t *)syscall(SYS_brk, current_brk + increment); if ((new_brk == current_brk) == expected_result) failure = 1; current_brk = (uint8_t *)syscall(SYS_brk, 0); } void test_result() { if (!failure) puts("OK"); else { puts("failure"); exit_status = EXIT_FAILURE; } } void test_title(const char *title) { failure = 0; printf("%-45s : ", title); fflush(stdout); } test_title("Initialization"); test_brk(0, 1); initial_brk = current_brk; test_result(); test_title("Don't overlap \"brk\" pages"); test_brk(HOST_PAGE_SIZE, 1); test_brk(HOST_PAGE_SIZE, 1); test_result(); /* Preparation for the test "Re-allocated heap is initialized". */ old_brk = current_brk - HOST_PAGE_SIZE; memset(old_brk, 0xFF, HOST_PAGE_SIZE); test_title("Don't allocate the same \"brk\" page twice"); test_brk(-HOST_PAGE_SIZE, 1); test_brk(HOST_PAGE_SIZE, 1); test_result(); test_title("Re-allocated \"brk\" pages are initialized"); for (i = 0; i < HOST_PAGE_SIZE; i++) { if (old_brk[i] != 0) { printf("(index = %d, value = 0x%x) ", i, old_brk[i]); failure = 1; break; } } test_result(); test_title("Don't allocate \"brk\" pages over \"mmap\" pages"); new_brk = mmap(current_brk, HOST_PAGE_SIZE / 2, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0); if (new_brk == (void *) -1) puts("unknown"); else { test_brk(HOST_PAGE_SIZE, 0); test_result(); } test_title("All \"brk\" pages are writable (please wait)"); if (munmap(current_brk, HOST_PAGE_SIZE / 2) != 0) puts("unknown"); else { while (current_brk - initial_brk < 2*1024*1024*1024UL) { old_brk = current_brk; test_brk(HOST_PAGE_SIZE, -1); if (old_brk == current_brk) break; for (i = 0; i < HOST_PAGE_SIZE; i++) old_brk[i] = 0xAA; } puts("OK"); } test_title("Maximum size of the heap > 16MB"); failure = (current_brk - initial_brk) < 16*1024*1024; test_result(); exit(exit_status); } Changes introduced in patch v2: * extend the "brk" test-suite embedded within the commit message; * heap contents have to be initialized to zero, this bug was exposed by "tst-calloc.c" from the GNU C library; * don't [try to] allocate a new host page if the new "brk" is equal to the latest allocated host page ("brk_page"); and * print some debug information when DEBUGF_BRK is defined. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Reviewed-by: Christophe Guillon <christophe.guillon@st.com> Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Don't use MAP_FIXED in do_brk()Peter Maydell1-9/+20
Since mmap() with MAP_FIXED will map over the top of existing mappings, it's a bad idea to use it to implement brk(), because brk() with a large size is likely to overwrite important things like qemu itself or the host libc. So we drop MAP_FIXED and handle "mapped but at different address" as an error case instead. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Handle images where lowest vaddr is not page alignedPeter Maydell1-57/+73
Fix a bug in the linux-user ELF loader code where it was not correctly handling images where the lowest vaddr to be loaded was not page aligned. The problem was that the code to probe for a suitable guest base address was changing the 'loaddr' variable (by rounding it to a page boundary), which meant that the load bias would then be incorrectly calculated unless loaddr happened to already be page-aligned. Binaries generated by gcc with the default linker script do start with a loadable segment at a page-aligned vaddr, so were unaffected. This bug was noticed with a binary created by the Google Go toolchain for ARM. We fix the bug by refactoring the "probe for guest base" code out into its own self-contained function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-21linux-user: Fix the load of ELF files that have no "useful" symbolCédric VINCENT1-15/+19
This patch fixes a "double free()" due to "realloc(syms, 0)" in the loader when the ELF file has no "useful" symbol, as with the following example (compiled with "sh4-linux-gcc -nostdlib"): .text .align 1 .global _start _start: mov #1, r3 trapa #40 // syscall(__NR_exit) nop The bug appears when the log (option "-d") is enabled. Signed-off-by: Cédric VINCENT <cedric.vincent@st.com> Signed-off-by: Yves JANIN <yves.janin@st.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Reviewed-by: Richard Henderson <rth@twiddle.net>
2011-06-20Don't translate pointer when in restore_sigcontextMike McCormack1-2/+2
Fixes crash in i386 when user emulation base address is non-zero. 21797 rt_sigreturn(8,1082124603,1,0,1082126048,1082126248)Exit reason and status: signal 11 Signed-off-by: Mike McCormack <mj.mccormack@samsung.com> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-06-15Command line support for altering the log file locationMatthew Fernandez1-17/+26
Add command line support for logging to a location other than /tmp/qemu.log. With logging enabled (command line option -d), the log is written to the hard-coded path /tmp/qemu.log. This patch adds support for writing the log to a different location by passing the -D option. Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-10Merge remote branch 'rth/axp-next' into alpha-mergeEdgar E. Iglesias1-33/+17
* rth/axp-next: (26 commits) target-alpha: Implement TLB flush primitives. target-alpha: Use a fixed frequency for the RPCC in system mode. target-alpha: Trap for unassigned and unaligned addresses. target-alpha: Remap PIO space for 43-bit KSEG for EV6. target-alpha: Implement cpu_alpha_handle_mmu_fault for system mode. target-alpha: Implement more CALL_PAL values inline. target-alpha: Disable interrupts properly. target-alpha: All ISA checks to use TB->FLAGS. target-alpha: Swap shadow registers moving to/from PALmode. target-alpha: Implement do_interrupt for system mode. target-alpha: Add IPRs to be used by the emulation PALcode. target-alpha: Use kernel mmu_idx for pal_mode. target-alpha: Add various symbolic constants. target-alpha: Use do_restore_state for arithmetic exceptions. target-alpha: Tidy up arithmetic exceptions. target-alpha: Tidy exception constants. target-alpha: Enable the alpha-softmmu target. target-alpha: Rationalize internal processor registers. target-alpha: Merge HW_REI and HW_RET implementations. target-alpha: Cleanup MMU modes. ...
2011-06-08Fix compilation warning due to missing header for sigaction (followup)Alexandre Raymond1-1/+0
This patch removes all references to signal.h when qemu-common.h is included as they become redundant. Signed-off-by: Alexandre Raymond <cerbere@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-05-31target-alpha: Tidy exception constants.Richard Henderson1-30/+14
There's no need to attempt to match EXCP_* values with PALcode entry point offsets. Instead, compress all the values to make for more efficient switch statements within QEMU. We will be doing TLB fill within QEMU proper, not within the PALcode, so all of the ITB/DTB miss, double fault, and access exceptions can be compressed to EXCP_MMFAULT. Compress all of the EXCP_CALL_PAL exceptions into one. Use env->error_code to store the specific entry point. Signed-off-by: Richard Henderson <rth@twiddle.net>
2011-05-31target-alpha: Rationalize internal processor registers.Richard Henderson1-3/+3
Delete all the code that tried to emulate the real IPRs of some unnamed CPU. Replace those with just 3 slots that we can use to communicate trap information between the helper functions that signal exceptions and the OS trap handler. Signed-off-by: Richard Henderson <rth@twiddle.net>
2011-05-23Merge branch 's390-next' of git://repo.or.cz/qemu/agrafAurelien Jarno9-6/+1181
* 's390-next' of git://repo.or.cz/qemu/agraf: s390x: complain when allocating ram fails s390x: fix memory detection for guests > 64GB s390x: change mapping base to allow guests > 2GB s390x: Fix debugging for unknown sigp order codes s390x: build s390x by default s390x: remove compatibility cc field s390x: Adjust GDB stub s390x: translate engine for s390x CPU s390x: Adjust internal kvm code s390x: Implement opcode helpers s390x: helper functions for system emulation s390x: Shift variables in CPUState for memset(0) s390x: keep hint on virtio managing size s390x: make kvm exported functions conditional on kvm s390x: s390x-linux-user support tcg: extend max tcg opcodes when using 64-on-32bit s390x: fix smp support for kvm
2011-05-22Delete unused tb_invalidate_page_rangeBlue Swirl1-20/+2
tb_invalidate_page_range() was intended to be used to invalidate an area of a TB which the guest explicitly flushes from i-cache. However, QEMU detects writes to code areas where TBs have been generated, so his has never been useful. Delete the function, adjust callers. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-05-20s390x: s390x-linux-user supportUlrich Hecht9-6/+1181
This patch adds support for running s390x binaries in the linux-user emulation code. Signed-off-by: Ulrich Hecht <uli@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-08linux-user: Replace deprecated functionStefan Weil1-1/+1
Function bzero is deprecated, so replace it by function memset. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-05-08Fix spelling in comments (intruction -> instruction)Stefan Weil1-1/+1
Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 17:45:59 +0000