linux-kernel - Re: [PATCH] KVM: VMX: invalidate vpid for invlpg instruction

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 31 Aug 2012 14:37:07 -0300
From:	Marcelo Tosatti <mtosatti@...hat.com>
To:	Davidlohr Bueso <dave@....org>
Cc:	Avi Kivity <avi@...hat.com>, KVM <kvm@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] KVM: VMX: invalidate vpid for invlpg instruction

On Fri, Aug 31, 2012 at 06:10:48PM +0200, Davidlohr Bueso wrote:
> For processors that support VPIDs we should invalidate the page table entry
> specified by the lineal address. For this purpose add support for individual
> address invalidations.

Not necessary - a single context invalidation is performed through
KVM_REQ_TLB_FLUSH.

Single-context. If the INVVPID type is 1, the logical processor
invalidates all
linear mappings and combined mappings associated with the VPID specified
in the INVVPID descriptor.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/