target/i386: check intercept for XSETBV

[PATCH] target/i386: check intercept for XSETBV

Paolo Bonzini posted 1 patch 7 months ago

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git fetch https://github.com/patchew-project/qemu tags/patchew/20231013091049.538945-1-pbonzini@redhat.com

Maintainers: Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>

target/i386/svm.h           | 1 +
target/i386/tcg/translate.c | 1 +
2 files changed, 2 insertions(+)

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[PATCH] target/i386: check intercept for XSETBV

Posted by Paolo Bonzini 7 months ago

Note that this intercept is special; it is checked before the #GP
exception.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/svm.h           | 1 +
 target/i386/tcg/translate.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/target/i386/svm.h b/target/i386/svm.h
index f9a785489d8..1bd78447306 100644
--- a/target/i386/svm.h
+++ b/target/i386/svm.h
@@ -132,6 +132,7 @@
 /* only included in documentation, maybe wrong */
 #define SVM_EXIT_MONITOR	0x08a
 #define SVM_EXIT_MWAIT		0x08b
+#define SVM_EXIT_XSETBV		0x08d
 #define SVM_EXIT_NPF  		0x400
 
 #define SVM_EXIT_ERR		-1
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index d2061ec44a0..4f6f9fa7e52 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -5916,6 +5916,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
                                  | PREFIX_REPZ | PREFIX_REPNZ))) {
                 goto illegal_op;
             }
+            gen_svm_check_intercept(s, SVM_EXIT_XSETBV);
             if (!check_cpl0(s)) {
                 break;
             }
-- 
2.41.0