From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Xen-devel <xen-devel@lists.xen.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Jan Beulich <JBeulich@suse.com>
Subject: [PATCH 02/10] x86/emul: Add feature check for clzero
Date: Mon, 27 Mar 2017 10:56:30 +0100 [thread overview]
Message-ID: <1490608598-11197-3-git-send-email-andrew.cooper3@citrix.com> (raw)
In-Reply-To: <1490608598-11197-1-git-send-email-andrew.cooper3@citrix.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Jan Beulich <JBeulich@suse.com>
---
xen/arch/x86/x86_emulate/x86_emulate.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c
index 497cc77..7af8a42 100644
--- a/xen/arch/x86/x86_emulate/x86_emulate.c
+++ b/xen/arch/x86/x86_emulate/x86_emulate.c
@@ -1604,6 +1604,7 @@ static bool vcpu_has(
#define vcpu_has_clwb() vcpu_has( 7, EBX, 24, ctxt, ops)
#define vcpu_has_sha() vcpu_has( 7, EBX, 29, ctxt, ops)
#define vcpu_has_rdpid() vcpu_has( 7, ECX, 22, ctxt, ops)
+#define vcpu_has_clzero() vcpu_has(0x80000008, EBX, 0, ctxt, ops)
#define vcpu_must_have(feat) \
generate_exception_if(!vcpu_has_##feat(), EXC_UD)
@@ -5183,6 +5184,8 @@ x86_emulate(
{
unsigned long zero = 0;
+ vcpu_must_have(clzero);
+
base = ad_bytes == 8 ? _regs.r(ax) :
ad_bytes == 4 ? _regs.eax : _regs.ax;
limit = 0;
--
2.1.4
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next prev parent reply other threads:[~2017-03-27 9:56 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-27 9:56 [PATCH 00/10] x86 emulation bugfixes and fuzzer improvements Andrew Cooper
2017-03-27 9:56 ` [PATCH 01/10] x86/emul: Correct the decoding of vlddqu Andrew Cooper
2017-03-27 11:24 ` Jan Beulich
2017-03-27 12:10 ` Andrew Cooper
2017-03-27 12:30 ` Jan Beulich
2017-03-27 9:56 ` Andrew Cooper [this message]
2017-03-27 11:25 ` [PATCH 02/10] x86/emul: Add feature check for clzero Jan Beulich
2017-03-27 11:28 ` Jan Beulich
2017-03-27 12:13 ` Andrew Cooper
2017-03-27 12:31 ` Jan Beulich
2017-03-27 13:40 ` Andrew Cooper
2017-03-27 9:56 ` [PATCH 03/10] tools/insn-fuzz: Don't use memcpy() for zero-length reads Andrew Cooper
2017-03-27 11:02 ` George Dunlap
2017-03-27 11:05 ` Andrew Cooper
2017-03-27 11:32 ` Jan Beulich
2017-03-27 12:22 ` Andrew Cooper
2017-03-27 12:35 ` Jan Beulich
2017-03-27 11:36 ` Jan Beulich
2017-03-27 12:14 ` Andrew Cooper
2017-03-27 9:56 ` [PATCH 04/10] tools/insn-fuzz: Avoid making use of static data Andrew Cooper
2017-03-27 11:39 ` Jan Beulich
2017-03-27 9:56 ` [PATCH 05/10] tools/insn-fuzz: Fix a stability bug in afl-clang-fast mode Andrew Cooper
2017-03-27 11:41 ` Jan Beulich
2017-03-27 9:56 ` [PATCH 06/10] tools/insn-fuzz: Correct hook prototypes, and assert() appropriate segments Andrew Cooper
2017-03-27 11:48 ` Jan Beulich
2017-03-27 12:49 ` Andrew Cooper
2017-03-27 9:56 ` [PATCH 07/10] tools/insn-fuzz: Provide IA32_DEBUGCTL consistently to the emulator Andrew Cooper
2017-03-27 11:53 ` Jan Beulich
2017-03-27 12:53 ` Andrew Cooper
2017-03-27 9:56 ` [PATCH 08/10] tools/insn-fuzz: Fix assertion failures in x86_emulate_wrapper() Andrew Cooper
2017-03-27 12:01 ` Jan Beulich
2017-03-27 9:56 ` [PATCH 09/10] tools/x86emul: Advertise more CPUID features for testing purposes Andrew Cooper
2017-03-27 11:20 ` George Dunlap
2017-03-27 12:13 ` Jan Beulich
2017-03-27 12:56 ` George Dunlap
2017-03-27 13:03 ` Andrew Cooper
2017-03-27 13:08 ` George Dunlap
2017-03-27 13:42 ` Jan Beulich
2017-03-27 13:49 ` Andrew Cooper
2017-03-27 13:37 ` Andrew Cooper
2017-03-27 13:45 ` Jan Beulich
2017-03-27 12:09 ` Jan Beulich
2017-03-27 13:01 ` Andrew Cooper
2017-03-27 13:40 ` Jan Beulich
2017-03-27 9:56 ` [PATCH 10/10] tools/insn-fuzz: Always use x86_swint_emulate_all Andrew Cooper
2017-03-27 11:00 ` George Dunlap
2017-03-27 13:09 ` Andrew Cooper
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