| 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
| ||
|
Date: Mon, 18 Aug 2014 16:39:24 +0200 From: Paolo Bonzini <pbonzini@...hat.com> To: Nadav Amit <nadav.amit@...il.com>, Wanpeng Li <wanpeng.li@...ux.intel.com> CC: Nadav Amit <namit@...technion.ac.il>, "gleb@...nel.org" <gleb@...nel.org>, "tglx@...utronix.de" <tglx@...utronix.de>, "mingo@...hat.com" <mingo@...hat.com>, "hpa@...or.com" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "kvm@...r.kernel.org" <kvm@...r.kernel.org> Subject: Re: [PATCH] KVM: x86: Increase the number of fixed MTRR regs to 10 Il 18/08/2014 16:31, Nadav Amit ha scritto: > The cause for the blue-screen appears to be seabios, which leaves only 0x20 slots for “smp_mtrr”s. > Apparently, the increase in the variable range MTRR count caused it to exhaust the available slots. > As a result, some MSRs are not initialised by the BIOS (specifically, 3.5-4GB are not marked as UC), and cause Windows to panic. > > Once we increase the size of the array smp_mtrr in seabios, Windows boots. > > Paolo, you may wish to revert the patch. Please note that it was applied to some stable branches. Thanks. I'll post a patch to SeaBIOS too, since this should happen on bare metal too. Paolo -- 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/
Powered by blists - more mailing lists