diff options
Diffstat (limited to '0029-x86emul-respect-NSCB.patch')
| -rw-r--r-- | 0029-x86emul-respect-NSCB.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/0029-x86emul-respect-NSCB.patch b/0029-x86emul-respect-NSCB.patch deleted file mode 100644 index 08785b7..0000000 --- a/0029-x86emul-respect-NSCB.patch +++ /dev/null @@ -1,40 +0,0 @@ -From 5dae06578cd5dcc312175b00ed6836a85732438d Mon Sep 17 00:00:00 2001 -From: Jan Beulich <jbeulich@suse.com> -Date: Mon, 31 Oct 2022 13:19:35 +0100 -Subject: [PATCH 29/87] x86emul: respect NSCB - -protmode_load_seg() would better adhere to that "feature" of clearing -base (and limit) during NULL selector loads. - -Signed-off-by: Jan Beulich <jbeulich@suse.com> -Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> -master commit: 87a20c98d9f0f422727fe9b4b9e22c2c43a5cd9c -master date: 2022-10-11 14:30:41 +0200 ---- - xen/arch/x86/x86_emulate/x86_emulate.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - -diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c -index 441086ea861d..847f8f37719f 100644 ---- a/xen/arch/x86/x86_emulate/x86_emulate.c -+++ b/xen/arch/x86/x86_emulate/x86_emulate.c -@@ -1970,6 +1970,7 @@ amd_like(const struct x86_emulate_ctxt *ctxt) - #define vcpu_has_tbm() (ctxt->cpuid->extd.tbm) - #define vcpu_has_clzero() (ctxt->cpuid->extd.clzero) - #define vcpu_has_wbnoinvd() (ctxt->cpuid->extd.wbnoinvd) -+#define vcpu_has_nscb() (ctxt->cpuid->extd.nscb) - - #define vcpu_has_bmi1() (ctxt->cpuid->feat.bmi1) - #define vcpu_has_hle() (ctxt->cpuid->feat.hle) -@@ -2102,7 +2103,7 @@ protmode_load_seg( - case x86_seg_tr: - goto raise_exn; - } -- if ( !_amd_like(cp) || !ops->read_segment || -+ if ( !_amd_like(cp) || vcpu_has_nscb() || !ops->read_segment || - ops->read_segment(seg, sreg, ctxt) != X86EMUL_OKAY ) - memset(sreg, 0, sizeof(*sreg)); - else --- -2.37.4 - |