x86 and build system changes for 2023-10-18

[PULL 05/32] target/i386: check intercept for XSETBV

Paolo Bonzini posted 32 patches 1 year, 1 month ago

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Maintainers: Paolo Bonzini <pbonzini@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Thomas Huth <thuth@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Michael Roth <michael.roth@amd.com>, Konstantin Kostiuk <kkostiuk@redhat.com>, John Snow <jsnow@redhat.com>, Cleber Rosa <crosa@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Mads Ynddal <mads@ynddal.dk>, Brian Cain <bcain@quicinc.com>, Marcelo Tosatti <mtosatti@redhat.com>, Wainer dos Santos Moschetta <wainersm@redhat.com>, Beraldo Leal <bleal@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Gerd Hoffmann <kraxel@redhat.com>

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[PULL 05/32] target/i386: check intercept for XSETBV

Posted by Paolo Bonzini 1 year, 1 month 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