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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-10 15:57:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-10 15:57:33 -0700 |
| commit | 722aacb28588c7d0326493d1a0700d6a886be7b9 (patch) | |
| tree | e189617d87b6aa349f3d8c30d5d882cac1982022 /arch | |
| parent | 9baba6660bb616ca6272314a62febe8f6726ad30 (diff) | |
| parent | b22227944b8fe92b19150b4c36421e37979d9a16 (diff) | |
Merge tag 'stable/for-linus-3.9-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
"Two bug-fixes:
- Early bootup issue found on DL380 machines
- Fix for the timer interrupt not being processed right awaym leading
to quite delayed time skew on certain workloads"
* tag 'stable/for-linus-3.9-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/mmu: On early bootup, flush the TLB when changing RO->RW bits Xen provided pagetables.
xen/events: Handle VIRQ_TIMER before any other hardirq in event loop.
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/mmu.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 6afbb2ca9a0a..a4ea92477e01 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1748,14 +1748,18 @@ static void *m2v(phys_addr_t maddr) } /* Set the page permissions on an identity-mapped pages */ -static void set_page_prot(void *addr, pgprot_t prot) +static void set_page_prot_flags(void *addr, pgprot_t prot, unsigned long flags) { unsigned long pfn = __pa(addr) >> PAGE_SHIFT; pte_t pte = pfn_pte(pfn, prot); - if (HYPERVISOR_update_va_mapping((unsigned long)addr, pte, 0)) + if (HYPERVISOR_update_va_mapping((unsigned long)addr, pte, flags)) BUG(); } +static void set_page_prot(void *addr, pgprot_t prot) +{ + return set_page_prot_flags(addr, prot, UVMF_NONE); +} #ifdef CONFIG_X86_32 static void __init xen_map_identity_early(pmd_t *pmd, unsigned long max_pfn) { @@ -1839,12 +1843,12 @@ static void __init check_pt_base(unsigned long *pt_base, unsigned long *pt_end, unsigned long addr) { if (*pt_base == PFN_DOWN(__pa(addr))) { - set_page_prot((void *)addr, PAGE_KERNEL); + set_page_prot_flags((void *)addr, PAGE_KERNEL, UVMF_INVLPG); clear_page((void *)addr); (*pt_base)++; } if (*pt_end == PFN_DOWN(__pa(addr))) { - set_page_prot((void *)addr, PAGE_KERNEL); + set_page_prot_flags((void *)addr, PAGE_KERNEL, UVMF_INVLPG); clear_page((void *)addr); (*pt_end)--; } |