From: Borislav Petkov <bp@alien8.de>
To: Andy Lutomirski <luto@kernel.org>
Cc: KVM list <kvm@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
X86 ML <x86@kernel.org>,
linux-kernel@vger.kernel.org, xen-devel <Xen-devel@lists.xen.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Arjan van de Ven <arjan@linux.intel.com>
Subject: Re: [PATCH v5 5/9] x86/paravirt: Add _safe to the read_msr and write_msr PV hooks
Date: Sun, 3 Apr 2016 10:41:29 +0200 [thread overview]
Message-ID: <20160403084129.GB19007__19230.5554672659$1459672976$gmane$org@pd.tnic> (raw)
In-Reply-To: <9ee3fb6a196a514c93325bdfa15594beecf04876.1459605520.git.luto@kernel.org>
On Sat, Apr 02, 2016 at 07:01:36AM -0700, Andy Lutomirski wrote:
> These hooks match the _safe variants, so name them accordingly.
> This will make room for unsafe PV hooks.
>
> Signed-off-by: Andy Lutomirski <luto@kernel.org>
> ---
> arch/x86/include/asm/paravirt.h | 33 +++++++++++++++++----------------
> arch/x86/include/asm/paravirt_types.h | 8 ++++----
> arch/x86/kernel/paravirt.c | 4 ++--
> arch/x86/xen/enlighten.c | 4 ++--
> 4 files changed, 25 insertions(+), 24 deletions(-)
...
> diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
> index 77db5616a473..5a06cccd36f0 100644
> --- a/arch/x86/include/asm/paravirt_types.h
> +++ b/arch/x86/include/asm/paravirt_types.h
> @@ -155,10 +155,10 @@ struct pv_cpu_ops {
> void (*cpuid)(unsigned int *eax, unsigned int *ebx,
> unsigned int *ecx, unsigned int *edx);
>
> - /* MSR, PMC and TSR operations.
> - err = 0/-EFAULT. wrmsr returns 0/-EFAULT. */
> - u64 (*read_msr)(unsigned int msr, int *err);
> - int (*write_msr)(unsigned int msr, unsigned low, unsigned high);
> + /* MSR operations.
> + err = 0/-EIO. wrmsr returns 0/-EIO. */
Please reformat this comment properly, while you're at it:
/*
* A sentence.
* Another sentence.
*/
> + u64 (*read_msr_safe)(unsigned int msr, int *err)Please reformat this
> comment properly, while you're at it:
> + int (*write_msr_safe)(unsigned int msr, unsigned low, unsigned high);
>
> u64 (*read_pmc)(int counter);
>
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-04-03 8:41 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1459605520.git.luto@kernel.org>
2016-04-02 14:01 ` [PATCH v5 1/9] x86/head: Pass a real pt_regs and trapnr to early_fixup_exception Andy Lutomirski
2016-04-13 11:43 ` [tip:x86/asm] x86/head: Pass a real pt_regs and trapnr to early_fixup_exception() tip-bot for Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 2/9] x86/head: Move the early NMI fixup into C Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Andy Lutomirski
2016-04-02 18:39 ` Borislav Petkov
[not found] ` <20160402183919.GA2538@pd.tnic>
2016-04-02 20:13 ` Andy Lutomirski
[not found] ` <CALCETrUJVDpzNQMsY=_jWNOMer+TdW2p4wES4OBCfYU7gq3fbg@mail.gmail.com>
2016-04-02 20:47 ` Borislav Petkov
[not found] ` <20160402204752.GC2538@pd.tnic>
2016-04-02 20:58 ` Andy Lutomirski
[not found] ` <CALCETrXHR3T3PJwOWRFHTMK5WjhDyTJfaJtkiHd+g7evnqp54A@mail.gmail.com>
2016-04-04 11:52 ` Jan Kara
[not found] ` <20160404115206.GG8372@quack.suse.cz>
2016-04-04 12:46 ` Peter Zijlstra
2016-04-04 15:32 ` Andy Lutomirski
[not found] ` <CALCETrVriftUPNZ8pCQ1x9TWDHnRx8fWUvJgCQToPEOxqMLb3w@mail.gmail.com>
2016-04-04 15:36 ` Arjan van de Ven
2016-04-04 16:00 ` Peter Zijlstra
[not found] ` <20160404160042.GB3448@twins.programming.kicks-ass.net>
2016-04-04 19:38 ` Borislav Petkov
[not found] ` <20160404193803.GK351@pd.tnic>
2016-04-04 21:31 ` Andy Lutomirski
[not found] ` <CALCETrVvFTrK1pVmjnfWwwq+5P6+1ghMjh4Wwqm05d=00ejYSw@mail.gmail.com>
2016-04-04 21:40 ` Borislav Petkov
2016-04-13 11:44 ` [tip:x86/asm] x86/head: Move early exception panic code into early_fixup_exception() tip-bot for Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 4/9] x86/traps: Enable all exception handler callbacks early Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 5/9] x86/paravirt: Add _safe to the read_msr and write_msr PV hooks Andy Lutomirski
2016-04-03 8:41 ` Borislav Petkov [this message]
[not found] ` <20160403084129.GB19007@pd.tnic>
2016-04-03 13:23 ` Andy Lutomirski
[not found] ` <CALCETrUcqTx00pKYEt49QSKKBKVEx-Uv0D6dzE1-Em6Q-wkSpQ@mail.gmail.com>
2016-04-03 14:07 ` Borislav Petkov
2016-04-13 11:44 ` [tip:x86/asm] x86/paravirt: Add _safe to the read_ms()r and write_msr() PV callbacks tip-bot for Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 6/9] x86/msr: Carry on after a non-"safe" MSR access fails Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 7/9] x86/paravirt: Add paravirt_{read, write}_msr Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 8/9] x86/paravirt: Make "unsafe" MSR accesses unsafe even if PARAVIRT=y Andy Lutomirski
2016-04-13 11:46 ` [tip:x86/asm] " tip-bot for Andy Lutomirski
2016-04-02 14:01 ` [PATCH v5 9/9] x86/msr: Set the return value to zero when native_rdmsr_safe fails Andy Lutomirski
2016-04-02 14:24 ` [PATCH v5 0/9] Improve non-"safe" MSR access failure handling Linus Torvalds
[not found] ` <CA+55aFwi2E0A9e7krCG9dkTq7vMZnxsBwtF6_hw6QO0EVObf=g@mail.gmail.com>
2016-04-02 15:13 ` Andy Lutomirski
[not found] ` <CALCETrWP33SR5TCA-baZi8xBrHpWe=wzkuvUM=y4x_MPt1XgYg@mail.gmail.com>
2016-04-02 15:21 ` Linus Torvalds
2016-04-04 16:23 ` Borislav Petkov
[not found] ` <880eebc5dcd2ad9f310d41345f82061ea500e9fa.1459605520.git.luto@kernel.org>
2016-04-04 16:33 ` [PATCH v5 7/9] x86/paravirt: Add paravirt_{read, write}_msr David Vrabel
[not found] ` <5702974A.1030003@citrix.com>
2016-04-04 16:40 ` Andy Lutomirski
2016-04-13 11:45 ` [tip:x86/asm] x86/paravirt: Add paravirt_{read, write}_msr() tip-bot for Andy Lutomirski
2016-04-05 15:38 ` [PATCH v5 0/9] Improve non-"safe" MSR access failure handling Boris Ostrovsky
[not found] ` <20fc047d926150cb08cb9b9f2923519b07ec1a15.1459605520.git.luto@kernel.org>
2016-04-02 18:52 ` [PATCH v5 4/9] x86/traps: Enable all exception handler callbacks early Borislav Petkov
[not found] ` <20160402185227.GB2538@pd.tnic>
2016-04-02 20:16 ` Andy Lutomirski
[not found] ` <CALCETrV7PxgmhU_yXjJSugY88T8Do=vBDuG54fOFSyLp7nGcJA@mail.gmail.com>
2016-04-02 20:52 ` Borislav Petkov
[not found] ` <20160402205248.GD2538@pd.tnic>
2016-04-03 8:07 ` Borislav Petkov
[not found] ` <20160403080737.GA19007@pd.tnic>
2016-04-03 13:22 ` Andy Lutomirski
2016-04-03 13:51 ` Linus Torvalds
[not found] ` <CA+55aFw19X7PO2xd1PpUav1rSyCqUqWgi9+SA7TgjaWMaxexHQ@mail.gmail.com>
2016-04-03 13:55 ` Andy Lutomirski
[not found] ` <CALCETrX_x+tV4m3SwgCfXg9y5gia8eMhhTdUnHuXpXhnULkHRw@mail.gmail.com>
2016-04-03 14:10 ` Borislav Petkov
2016-04-03 14:17 ` Linus Torvalds
[not found] ` <20160403141041.GE19007@pd.tnic>
2016-04-04 15:47 ` Andy Lutomirski
2016-04-13 11:44 ` [tip:x86/asm] " tip-bot for Andy Lutomirski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='20160403084129.GB19007__19230.5554672659$1459672976$gmane$org@pd.tnic' \
--to=bp@alien8.de \
--cc=Xen-devel@lists.xen.org \
--cc=akpm@linux-foundation.org \
--cc=arjan@linux.intel.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=pbonzini@redhat.com \
--cc=peterz@infradead.org \
--cc=torvalds@linux-foundation.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).