linux-kernel - Re: [PATCH v2 00/13] KVM: selftests: Morph max_guest_mem to mmu

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]

Message-ID: <ZuL0xEIB1ol5epEE@google.com>
Date: Thu, 12 Sep 2024 07:03:48 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Andrew Jones <ajones@...tanamicro.com>
Cc: Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, 
	Anup Patel <anup@...infault.org>, Paolo Bonzini <pbonzini@...hat.com>, 
	Christian Borntraeger <borntraeger@...ux.ibm.com>, Janosch Frank <frankja@...ux.ibm.com>, 
	Claudio Imbrenda <imbrenda@...ux.ibm.com>, linux-arm-kernel@...ts.infradead.org, 
	kvmarm@...ts.linux.dev, kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org, 
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	James Houghton <jthoughton@...gle.com>
Subject: Re: [PATCH v2 00/13] KVM: selftests: Morph max_guest_mem to mmu_stress

On Thu, Sep 12, 2024, Andrew Jones wrote:
> I gave this test a try on riscv, but it appears to hang in
> rendezvous_with_vcpus(). My platform is QEMU, so maybe I was just too
> impatient.

Try running with " -m 1 -s 1", which tells the test to use only 1GiB of memory.
That should run quite quickly, even in an emulator.

> Anyway, I haven't read the test yet, so I don't even know what it's doing.
> It's possibly it's trying to do something not yet supported on riscv. I'll
> add investigating that to my TODO, but I'm not sure when I'll get to it.
> 
> As for this series, another patch (or a sneaky change to one
> of the patches...) should add 
> 
>  #include "ucall_common.h"
> 
> to mmu_stress_test.c since it's not there yet despite using get_ucall().
> Building riscv faild because of that.

Roger that.

Thanks!