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target-i386: xsave: Add FP and SSE bits to x86_ext_save_areas

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Instead of treating the FP and SSE bits as special cases, add
them to the x86_ext_save_areas array. This will simplify the code
that calculates the supported xsave components and the size of
the xsave area.

Backports commit e3c9022b4e2b6a4deb6518361d2bbf33522b9198 from qemu
This commit is contained in:
Eduardo Habkost 2018-02-26 09:36:54 -05:00 committed by Lioncash
parent 54bd827472
commit 08bfa41e1b
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 10 additions and 4 deletions
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14
qemu/target-i386/cpu.c
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@ -578,13 +578,19 @@ typedef struct ExtSaveArea {
static const ExtSaveArea x86_ext_save_areas[] = { static const ExtSaveArea x86_ext_save_areas[] = {
// XSTATE_FP_BIT // XSTATE_FP_BIT
{ {
0, 0, /* x87 FP state component is always enabled if XSAVE is supported */
0, 0 FEAT_1_ECX, CPUID_EXT_XSAVE,
/* x87 state is in the legacy region of the XSAVE area */
0,
sizeof(X86LegacyXSaveArea) + sizeof(X86XSaveHeader),
}, },
// XSTATE_SSE_BIT // XSTATE_SSE_BIT
{ {
0, 0, /* SSE state component is always enabled if XSAVE is supported */
0, 0, FEAT_1_ECX, CPUID_EXT_XSAVE,
/* SSE state is in the legacy region of the XSAVE area */
0,
sizeof(X86LegacyXSaveArea) + sizeof(X86XSaveHeader),
}, },
// XSTATE_YMM_BIT // XSTATE_YMM_BIT
{ {