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i386: hvf: use new helper functions for put/get xsave

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This patch makes use of the helper functions for handling xsave in
xsave_helper.c, which are shared with kvm.

Signed-off-by: Sergio Andres Gomez Del Real <Sergio.G.DelReal@gmail.com>
Message-Id: <20170913090522.4022-10-Sergio.G.DelReal@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sergio Andres Gomez Del Real 2017-09-13 04:05:17 -05:00 committed by Paolo Bonzini
parent 996feed462
commit f585195ec0
3 changed files with 12 additions and 67 deletions
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3
target/i386/hvf-all.c
View file

@ -502,8 +502,7 @@ int hvf_init_vcpu(CPUState *cpu)
hvf_reset_vcpu(cpu);
x86cpu = X86_CPU(cpu);
x86cpu->env.kvm_xsave_buf = qemu_memalign(4096,
sizeof(struct hvf_xsave_buf));
x86cpu->env.kvm_xsave_buf = qemu_memalign(4096, 4096);
hv_vcpu_enable_native_msr(cpu->hvf_fd, MSR_STAR, 1);
hv_vcpu_enable_native_msr(cpu->hvf_fd, MSR_LSTAR, 1);

7
target/i386/hvf-utils/x86.h
View file

@ -373,13 +373,6 @@ struct HVFX86EmulatorState {
uint8_t mmio_buf[4096];
};
/*
* hvf xsave area
*/
struct hvf_xsave_buf {
uint32_t data[1024];
};
/* useful register access macros */
#define RIP(cpu) (cpu->hvf_emul->rip)
#define EIP(cpu) ((uint32_t)cpu->hvf_emul->rip)

69
target/i386/hvf-utils/x86hvf.c
View file

@ -76,36 +76,13 @@ void hvf_get_segment(SegmentCache *qseg, struct vmx_segment *vmx_seg)
void hvf_put_xsave(CPUState *cpu_state)
{
int x;
struct hvf_xsave_buf *xsave;
struct X86XSaveArea *xsave;
xsave = X86_CPU(cpu_state)->env.kvm_xsave_buf;
memset(xsave, 0, sizeof(*xsave));
memcpy(&xsave->data[4], &X86_CPU(cpu_state)->env.fpdp, sizeof(X86_CPU(cpu_state)->env.fpdp));
memcpy(&xsave->data[2], &X86_CPU(cpu_state)->env.fpip, sizeof(X86_CPU(cpu_state)->env.fpip));
memcpy(&xsave->data[8], &X86_CPU(cpu_state)->env.fpregs, sizeof(X86_CPU(cpu_state)->env.fpregs));
memcpy(&xsave->data[144], &X86_CPU(cpu_state)->env.ymmh_regs, sizeof(X86_CPU(cpu_state)->env.ymmh_regs));
memcpy(&xsave->data[288], &X86_CPU(cpu_state)->env.zmmh_regs, sizeof(X86_CPU(cpu_state)->env.zmmh_regs));
memcpy(&xsave->data[272], &X86_CPU(cpu_state)->env.opmask_regs, sizeof(X86_CPU(cpu_state)->env.opmask_regs));
memcpy(&xsave->data[240], &X86_CPU(cpu_state)->env.bnd_regs, sizeof(X86_CPU(cpu_state)->env.bnd_regs));
memcpy(&xsave->data[256], &X86_CPU(cpu_state)->env.bndcs_regs, sizeof(X86_CPU(cpu_state)->env.bndcs_regs));
memcpy(&xsave->data[416], &X86_CPU(cpu_state)->env.hi16_zmm_regs, sizeof(X86_CPU(cpu_state)->env.hi16_zmm_regs));
xsave->data[0] = (uint16_t)X86_CPU(cpu_state)->env.fpuc;
xsave->data[0] |= (X86_CPU(cpu_state)->env.fpus << 16);
xsave->data[0] |= (X86_CPU(cpu_state)->env.fpstt & 7) << 11;
for (x = 0; x < 8; ++x)
xsave->data[1] |= ((!X86_CPU(cpu_state)->env.fptags[x]) << x);
xsave->data[1] |= (uint32_t)(X86_CPU(cpu_state)->env.fpop << 16);
memcpy(&xsave->data[40], &X86_CPU(cpu_state)->env.xmm_regs, sizeof(X86_CPU(cpu_state)->env.xmm_regs));
xsave->data[6] = X86_CPU(cpu_state)->env.mxcsr;
*(uint64_t *)&xsave->data[128] = X86_CPU(cpu_state)->env.xstate_bv;
if (hv_vcpu_write_fpstate(cpu_state->hvf_fd, xsave->data, 4096)){
x86_cpu_xsave_all_areas(X86_CPU(cpu_state), xsave);
if (hv_vcpu_write_fpstate(cpu_state->hvf_fd, (void*)xsave, 4096)) {
abort();
}
}
@ -187,39 +164,15 @@ void hvf_put_msrs(CPUState *cpu_state)
void hvf_get_xsave(CPUState *cpu_state)
{
int x;
struct hvf_xsave_buf *xsave;
struct X86XSaveArea *xsave;
xsave = X86_CPU(cpu_state)->env.kvm_xsave_buf;
if (hv_vcpu_read_fpstate(cpu_state->hvf_fd, xsave->data, 4096)) {
if (hv_vcpu_read_fpstate(cpu_state->hvf_fd, (void*)xsave, 4096)) {
abort();
}
memcpy(&X86_CPU(cpu_state)->env.fpdp, &xsave->data[4], sizeof(X86_CPU(cpu_state)->env.fpdp));
memcpy(&X86_CPU(cpu_state)->env.fpip, &xsave->data[2], sizeof(X86_CPU(cpu_state)->env.fpip));
memcpy(&X86_CPU(cpu_state)->env.fpregs, &xsave->data[8], sizeof(X86_CPU(cpu_state)->env.fpregs));
memcpy(&X86_CPU(cpu_state)->env.ymmh_regs, &xsave->data[144], sizeof(X86_CPU(cpu_state)->env.ymmh_regs));
memcpy(&X86_CPU(cpu_state)->env.zmmh_regs, &xsave->data[288], sizeof(X86_CPU(cpu_state)->env.zmmh_regs));
memcpy(&X86_CPU(cpu_state)->env.opmask_regs, &xsave->data[272], sizeof(X86_CPU(cpu_state)->env.opmask_regs));
memcpy(&X86_CPU(cpu_state)->env.bnd_regs, &xsave->data[240], sizeof(X86_CPU(cpu_state)->env.bnd_regs));
memcpy(&X86_CPU(cpu_state)->env.bndcs_regs, &xsave->data[256], sizeof(X86_CPU(cpu_state)->env.bndcs_regs));
memcpy(&X86_CPU(cpu_state)->env.hi16_zmm_regs, &xsave->data[416], sizeof(X86_CPU(cpu_state)->env.hi16_zmm_regs));
X86_CPU(cpu_state)->env.fpuc = (uint16_t)xsave->data[0];
X86_CPU(cpu_state)->env.fpus = (uint16_t)(xsave->data[0] >> 16);
X86_CPU(cpu_state)->env.fpstt = (X86_CPU(cpu_state)->env.fpus >> 11) & 7;
X86_CPU(cpu_state)->env.fpop = (uint16_t)(xsave->data[1] >> 16);
for (x = 0; x < 8; ++x)
X86_CPU(cpu_state)->env.fptags[x] =
((((uint16_t)xsave->data[1] >> x) & 1) == 0);
memcpy(&X86_CPU(cpu_state)->env.xmm_regs, &xsave->data[40], sizeof(X86_CPU(cpu_state)->env.xmm_regs));
X86_CPU(cpu_state)->env.mxcsr = xsave->data[6];
X86_CPU(cpu_state)->env.xstate_bv = *(uint64_t *)&xsave->data[128];
x86_cpu_xrstor_all_areas(X86_CPU(cpu_state), xsave);
}
void hvf_get_segments(CPUState *cpu_state)