From: Borislav Petkov <bp@alien8.de>
To: "Thomas Hellström (VMware)" <thomas_os@shipmail.org>
Cc: linux-kernel@vger.kernel.org, pv-drivers@vmware.com,
linux-graphics-maintainer@vmware.com,
Thomas Hellstrom <thellstrom@vmware.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, dri-devel@lists.freedesktop.org,
Doug Covelli <dcovelli@vmware.com>
Subject: Re: [PATCH v2 2/4] x86/vmware: Add a header file for hypercall definitions
Date: Tue, 27 Aug 2019 15:10:29 +0200 [thread overview]
Message-ID: <20190827131029.GF29752@zn.tnic> (raw)
In-Reply-To: <20190823081316.28478-3-thomas_os@shipmail.org>
On Fri, Aug 23, 2019 at 10:13:14AM +0200, Thomas Hellström (VMware) wrote:
> From: Thomas Hellstrom <thellstrom@vmware.com>
>
> The new header is intended to be used by drivers using the backdoor.
> Follow the kvm example using alternatives self-patching to
> choose between vmcall, vmmcall and io instructions.
>
> Also define two new CPU feature flags to indicate hypervisor support
> for vmcall- and vmmcall instructions.
I could use some of the explanation why we need two feature flags added
here from:
https://lkml.kernel.org/r/970d2bb6-ab29-315f-f5d8-5d11095859af@shipmail.org
Thx.
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
next prev parent reply other threads:[~2019-08-27 13:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-23 8:13 [PATCH v2 0/4] Add support for updated vmware hypercall instruction Thomas Hellström (VMware)
2019-08-23 8:13 ` [PATCH v2 1/4] x86/vmware: Update platform detection code for VMCALL/VMMCALL hypercalls Thomas Hellström (VMware)
2019-08-27 12:56 ` Borislav Petkov
2019-08-27 19:19 ` Thomas Hellström (VMware)
2019-08-27 19:48 ` Borislav Petkov
2019-08-28 7:45 ` Thomas Hellström (VMware)
2019-08-28 8:45 ` Borislav Petkov
2019-08-23 8:13 ` [PATCH v2 2/4] x86/vmware: Add a header file for hypercall definitions Thomas Hellström (VMware)
2019-08-27 13:10 ` Borislav Petkov [this message]
2019-08-27 15:44 ` Borislav Petkov
2019-08-27 19:19 ` Thomas Hellström (VMware)
2019-08-27 19:54 ` Borislav Petkov
2019-08-23 8:13 ` [PATCH v2 3/4] drm/vmwgfx: Update the backdoor call with support for new instructions Thomas Hellström (VMware)
2019-08-26 20:12 ` Dave Airlie
2019-08-23 8:13 ` [PATCH v2 4/4] input/vmmouse: " Thomas Hellström (VMware)
2019-08-27 8:33 ` [PATCH v2 0/4] Add support for updated vmware hypercall instruction Thomas Hellström (VMware)
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