From: Paolo Bonzini <pbonzini@redhat.com>
To: Nadav Amit <namit@cs.technion.ac.il>
Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, gleb@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH kvm-unit-tests 0/3] x86: Test rflags.rf clearing/setting
Date: Mon, 21 Jul 2014 14:25:16 +0200 [thread overview]
Message-ID: <53CD06AC.1000408@redhat.com> (raw)
In-Reply-To: <1405942794-22681-1-git-send-email-namit@cs.technion.ac.il>
Il 21/07/2014 13:39, Nadav Amit ha scritto:
> This series of patches introduces checks for rflags.rf and whether it is
> cleared after emulation, and set correctly. The last (third) patch fails even
> with recent fixes, since there is no easy way for the hypervisor to determine
> whether any iteration of rep-string was executed before. RFLAGS.RF should be
> cleared before the first iteration, and set otherwise.
>
> Nadav Amit (3):
> x86: Check rflags.rf is cleared after emulation
> x86: Test rflags.rf is set upon faults
> x86: Check RFLAGS.RF on interrupt during REP-str
>
> lib/x86/desc.c | 14 +++++++++++---
> lib/x86/desc.h | 1 +
> x86/eventinj.c | 16 ++++++++++++++++
> x86/idt_test.c | 13 +++++++++----
> x86/realmode.c | 3 ++-
> 5 files changed, 39 insertions(+), 8 deletions(-)
>
I applied patch 1.
Paolo
next prev parent reply other threads:[~2014-07-21 12:25 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-21 11:37 [PATCH 0/7] KVM: x86: Additional rflags.rf fixes Nadav Amit
2014-07-21 11:37 ` [PATCH 1/7] KVM: x86: Defining missing x86 vectors Nadav Amit
2014-07-21 11:37 ` [PATCH 2/7] KVM: x86: Function for determining exception type Nadav Amit
2014-07-21 12:18 ` Paolo Bonzini
2014-07-21 21:30 ` Nadav Amit
2014-07-22 8:08 ` Paolo Bonzini
2014-07-21 11:37 ` [PATCH 3/7] KVM: x86: Clearing rflags.rf upon skipped emulated instruction Nadav Amit
2014-07-21 11:37 ` [PATCH 4/7] KVM: vmx: set rflags.rf during fault injection Nadav Amit
2014-07-21 12:05 ` Paolo Bonzini
2014-07-21 11:37 ` [PATCH 5/7] KVM: x86: popf emulation should not change RF Nadav Amit
2014-07-21 11:37 ` [PATCH 6/7] KVM: x86: Clear rflags.rf on emulated instructions Nadav Amit
2014-07-21 11:37 ` [PATCH 7/7] KVM: x86: Cleanup of rflags.rf cleaning Nadav Amit
2014-07-21 11:39 ` [PATCH kvm-unit-tests 0/3] x86: Test rflags.rf clearing/setting Nadav Amit
2014-07-21 11:39 ` [PATCH kvm-unit-tests 1/3] x86: Check rflags.rf is cleared after emulation Nadav Amit
2014-07-21 11:39 ` [PATCH kvm-unit-tests 2/3] x86: Test rflags.rf is set upon faults Nadav Amit
2014-07-21 12:24 ` Paolo Bonzini
2014-07-21 11:39 ` [PATCH kvm-unit-tests 3/3] x86: Check RFLAGS.RF on interrupt during REP-str Nadav Amit
2014-07-21 12:25 ` Paolo Bonzini [this message]
2014-07-24 11:55 ` [PATCH kvm-unit-tests] x86: Test rflags.rf is set upon faults Nadav Amit
2014-07-24 12:09 ` Paolo Bonzini
2014-07-21 12:19 ` [PATCH 0/7] KVM: x86: Additional rflags.rf fixes Paolo Bonzini
2014-07-21 12:28 ` Nadav Amit
2014-07-21 12:31 ` Paolo Bonzini
2014-07-24 11:51 ` [PATCH 0/2] KVM: x86: Missing " Nadav Amit
2014-07-24 11:51 ` [PATCH 1/2] KVM: x86: Setting rflags.rf during rep-string emulation Nadav Amit
2014-07-24 11:51 ` [PATCH 2/2] KVM: x86: set rflags.rf during fault injection Nadav Amit
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