From 86cd2ea071b925d9fa231abb3e0f1ecfb5633f91 Mon Sep 17 00:00:00 2001 From: Eduardo Habkost Date: Mon, 23 Nov 2015 10:43:26 -0200 Subject: target-i386: kvm: Use X86XSaveArea struct for xsave save/load Instead of using offset macros and bit operations in a uint32_t array, use the X86XSaveArea struct to perform the loading/saving operations in kvm_put_xsave() and kvm_get_xsave(). Signed-off-by: Eduardo Habkost --- target-i386/kvm.c | 78 +++++++++++++++++++++++++++---------------------------- 1 file changed, 38 insertions(+), 40 deletions(-) diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 6937016570..084183510a 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -1333,9 +1333,8 @@ ASSERT_OFFSET(XSAVE_PKRU, pkru_state); static int kvm_put_xsave(X86CPU *cpu) { CPUX86State *env = &cpu->env; - struct kvm_xsave* xsave = env->kvm_xsave_buf; + X86XSaveArea *xsave = env->kvm_xsave_buf; uint16_t cwd, swd, twd; - uint8_t *xmm, *ymmh, *zmmh; int i, r; if (!has_xsave) { @@ -1350,25 +1349,26 @@ static int kvm_put_xsave(X86CPU *cpu) for (i = 0; i < 8; ++i) { twd |= (!env->fptags[i]) << i; } - xsave->region[XSAVE_FCW_FSW] = (uint32_t)(swd << 16) + cwd; - xsave->region[XSAVE_FTW_FOP] = (uint32_t)(env->fpop << 16) + twd; - memcpy(&xsave->region[XSAVE_CWD_RIP], &env->fpip, sizeof(env->fpip)); - memcpy(&xsave->region[XSAVE_CWD_RDP], &env->fpdp, sizeof(env->fpdp)); - memcpy(&xsave->region[XSAVE_ST_SPACE], env->fpregs, + xsave->legacy.fcw = cwd; + xsave->legacy.fsw = swd; + xsave->legacy.ftw = twd; + xsave->legacy.fpop = env->fpop; + xsave->legacy.fpip = env->fpip; + xsave->legacy.fpdp = env->fpdp; + memcpy(&xsave->legacy.fpregs, env->fpregs, sizeof env->fpregs); - xsave->region[XSAVE_MXCSR] = env->mxcsr; - *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV] = env->xstate_bv; - memcpy(&xsave->region[XSAVE_BNDREGS], env->bnd_regs, + xsave->legacy.mxcsr = env->mxcsr; + xsave->header.xstate_bv = env->xstate_bv; + memcpy(&xsave->bndreg_state.bnd_regs, env->bnd_regs, sizeof env->bnd_regs); - memcpy(&xsave->region[XSAVE_BNDCSR], &env->bndcs_regs, - sizeof(env->bndcs_regs)); - memcpy(&xsave->region[XSAVE_OPMASK], env->opmask_regs, + xsave->bndcsr_state.bndcsr = env->bndcs_regs; + memcpy(&xsave->opmask_state.opmask_regs, env->opmask_regs, sizeof env->opmask_regs); - xmm = (uint8_t *)&xsave->region[XSAVE_XMM_SPACE]; - ymmh = (uint8_t *)&xsave->region[XSAVE_YMMH_SPACE]; - zmmh = (uint8_t *)&xsave->region[XSAVE_ZMM_Hi256]; - for (i = 0; i < CPU_NB_REGS; i++, xmm += 16, ymmh += 16, zmmh += 32) { + for (i = 0; i < CPU_NB_REGS; i++) { + uint8_t *xmm = xsave->legacy.xmm_regs[i]; + uint8_t *ymmh = xsave->avx_state.ymmh[i]; + uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i]; stq_p(xmm, env->xmm_regs[i].ZMM_Q(0)); stq_p(xmm+8, env->xmm_regs[i].ZMM_Q(1)); stq_p(ymmh, env->xmm_regs[i].ZMM_Q(2)); @@ -1380,9 +1380,9 @@ static int kvm_put_xsave(X86CPU *cpu) } #ifdef TARGET_X86_64 - memcpy(&xsave->region[XSAVE_Hi16_ZMM], &env->xmm_regs[16], + memcpy(&xsave->hi16_zmm_state.hi16_zmm, &env->xmm_regs[16], 16 * sizeof env->xmm_regs[16]); - memcpy(&xsave->region[XSAVE_PKRU], &env->pkru, sizeof env->pkru); + memcpy(&xsave->pkru_state, &env->pkru, sizeof env->pkru); #endif r = kvm_vcpu_ioctl(CPU(cpu), KVM_SET_XSAVE, xsave); return r; @@ -1771,9 +1771,8 @@ static int kvm_get_fpu(X86CPU *cpu) static int kvm_get_xsave(X86CPU *cpu) { CPUX86State *env = &cpu->env; - struct kvm_xsave* xsave = env->kvm_xsave_buf; + X86XSaveArea *xsave = env->kvm_xsave_buf; int ret, i; - const uint8_t *xmm, *ymmh, *zmmh; uint16_t cwd, swd, twd; if (!has_xsave) { @@ -1785,33 +1784,32 @@ static int kvm_get_xsave(X86CPU *cpu) return ret; } - cwd = (uint16_t)xsave->region[XSAVE_FCW_FSW]; - swd = (uint16_t)(xsave->region[XSAVE_FCW_FSW] >> 16); - twd = (uint16_t)xsave->region[XSAVE_FTW_FOP]; - env->fpop = (uint16_t)(xsave->region[XSAVE_FTW_FOP] >> 16); + cwd = xsave->legacy.fcw; + swd = xsave->legacy.fsw; + twd = xsave->legacy.ftw; + env->fpop = xsave->legacy.fpop; env->fpstt = (swd >> 11) & 7; env->fpus = swd; env->fpuc = cwd; for (i = 0; i < 8; ++i) { env->fptags[i] = !((twd >> i) & 1); } - memcpy(&env->fpip, &xsave->region[XSAVE_CWD_RIP], sizeof(env->fpip)); - memcpy(&env->fpdp, &xsave->region[XSAVE_CWD_RDP], sizeof(env->fpdp)); - env->mxcsr = xsave->region[XSAVE_MXCSR]; - memcpy(env->fpregs, &xsave->region[XSAVE_ST_SPACE], + env->fpip = xsave->legacy.fpip; + env->fpdp = xsave->legacy.fpdp; + env->mxcsr = xsave->legacy.mxcsr; + memcpy(env->fpregs, &xsave->legacy.fpregs, sizeof env->fpregs); - env->xstate_bv = *(uint64_t *)&xsave->region[XSAVE_XSTATE_BV]; - memcpy(env->bnd_regs, &xsave->region[XSAVE_BNDREGS], + env->xstate_bv = xsave->header.xstate_bv; + memcpy(env->bnd_regs, &xsave->bndreg_state.bnd_regs, sizeof env->bnd_regs); - memcpy(&env->bndcs_regs, &xsave->region[XSAVE_BNDCSR], - sizeof(env->bndcs_regs)); - memcpy(env->opmask_regs, &xsave->region[XSAVE_OPMASK], + env->bndcs_regs = xsave->bndcsr_state.bndcsr; + memcpy(env->opmask_regs, &xsave->opmask_state.opmask_regs, sizeof env->opmask_regs); - xmm = (const uint8_t *)&xsave->region[XSAVE_XMM_SPACE]; - ymmh = (const uint8_t *)&xsave->region[XSAVE_YMMH_SPACE]; - zmmh = (const uint8_t *)&xsave->region[XSAVE_ZMM_Hi256]; - for (i = 0; i < CPU_NB_REGS; i++, xmm += 16, ymmh += 16, zmmh += 32) { + for (i = 0; i < CPU_NB_REGS; i++) { + uint8_t *xmm = xsave->legacy.xmm_regs[i]; + uint8_t *ymmh = xsave->avx_state.ymmh[i]; + uint8_t *zmmh = xsave->zmm_hi256_state.zmm_hi256[i]; env->xmm_regs[i].ZMM_Q(0) = ldq_p(xmm); env->xmm_regs[i].ZMM_Q(1) = ldq_p(xmm+8); env->xmm_regs[i].ZMM_Q(2) = ldq_p(ymmh); @@ -1823,9 +1821,9 @@ static int kvm_get_xsave(X86CPU *cpu) } #ifdef TARGET_X86_64 - memcpy(&env->xmm_regs[16], &xsave->region[XSAVE_Hi16_ZMM], + memcpy(&env->xmm_regs[16], &xsave->hi16_zmm_state.hi16_zmm, 16 * sizeof env->xmm_regs[16]); - memcpy(&env->pkru, &xsave->region[XSAVE_PKRU], sizeof env->pkru); + memcpy(&env->pkru, &xsave->pkru_state, sizeof env->pkru); #endif return 0; } -- cgit v1.2.3