From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: Should SEV-ES #VC use IST? (Re: [PATCH] Allow RDTSC and RDTSCP from userspace) Date: Tue, 23 Jun 2020 17:51:44 +0200 Message-ID: <20200623155144.GD32590@zn.tnic> References: <20200425191032.GK21900@8bytes.org> <910AE5B4-4522-4133-99F7-64850181FBF9@amacapital.net> <20200425202316.GL21900@8bytes.org> <20200428075512.GP30814@suse.de> <20200623110706.GB4817@hirez.programming.kicks-ass.net> <20200623113007.GH31822@suse.de> <8413fe52-04ee-f4e1-873c-17595110856a@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <8413fe52-04ee-f4e1-873c-17595110856a@citrix.com> Sender: kvm-owner@vger.kernel.org To: Andrew Cooper Cc: Joerg Roedel , Peter Zijlstra , Andy Lutomirski , Joerg Roedel , Dave Hansen , Tom Lendacky , Mike Stunes , Dan Williams , Dave Hansen , "H. Peter Anvin" , Juergen Gross , Jiri Slaby , Kees Cook , kvm list , LKML , Thomas Hellstrom , Linux Virtualization , X86 ML , Sean Christopherson List-Id: virtualization@lists.linuxfoundation.org On Tue, Jun 23, 2020 at 12:51:03PM +0100, Andrew Cooper wrote: > Crashing out hard if the hypervisor is misbehaving is acceptable.  In a > cloud, I as a customer would (threaten to?) take my credit card > elsewhere, while for enterprise, I'd shout at my virtualisation vendor > until a fix happened (also perhaps threaten to take my credit card > elsewhere). This is called customer, credit-card-enforced bug fixing. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette