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[Qemu-devel] [RFC PATCH v4 3/5] Add hepler functions for CPUID xsave are
From: |
Yang Weijiang |
Subject: |
[Qemu-devel] [RFC PATCH v4 3/5] Add hepler functions for CPUID xsave area size calculation. |
Date: |
Mon, 18 Mar 2019 23:11:29 +0800 |
These functions are called when return CPUID xsave area
size information.
Signed-off-by: Zhang Yi <address@hidden>
Signed-off-by: Yang Weijiang <address@hidden>
---
target/i386/cpu.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index f6c7bdf6fe..11dbb9bcc4 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1290,6 +1290,12 @@ static inline uint64_t x86_cpu_xsave_components(X86CPU
*cpu)
cpu->env.features[FEAT_XSAVE_COMP_LO];
}
+static inline uint64_t x86_cpu_xsave_sv_components(X86CPU *cpu)
+{
+ return ((uint64_t)cpu->env.features[FEAT_XSAVE_SV_HI]) << 32 |
+ cpu->env.features[FEAT_XSAVE_SV_LO];
+}
+
const char *get_register_name_32(unsigned int reg)
{
if (reg >= CPU_NB_REGS32) {
@@ -4919,8 +4925,10 @@ static void x86_cpu_enable_xsave_components(X86CPU *cpu)
}
}
- env->features[FEAT_XSAVE_COMP_LO] = mask;
+ env->features[FEAT_XSAVE_COMP_LO] = mask & CPUID_XSTATE_USER_MASK;
env->features[FEAT_XSAVE_COMP_HI] = mask >> 32;
+ env->features[FEAT_XSAVE_SV_LO] = mask & CPUID_XSTATE_KERNEL_MASK;
+ env->features[FEAT_XSAVE_SV_HI] = mask >> 32;
}
/***** Steps involved on loading and filtering CPUID data
--
2.17.1