From: David Gibson <david@gibson.dropbear.id.au>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: linuxppc-dev@ozlabs.org, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH v3 18/33] KVM: PPC: Book3S HV: Nested guest entry via hypercall
Date: Wed, 3 Oct 2018 15:12:10 +1000 [thread overview]
Message-ID: <20181003051210.GN1886@umbus.fritz.box> (raw)
In-Reply-To: <1538479892-14835-19-git-send-email-paulus@ozlabs.org>
[-- Attachment #1: Type: text/plain, Size: 1279 bytes --]
On Tue, Oct 02, 2018 at 09:31:17PM +1000, Paul Mackerras wrote:
> This adds a new hypercall, H_ENTER_NESTED, which is used by a nested
> hypervisor to enter one of its nested guests. The hypercall supplies
> register values in two structs. Those values are copied by the level 0
> (L0) hypervisor (the one which is running in hypervisor mode) into the
> vcpu struct of the L1 guest, and then the guest is run until an
> interrupt or error occurs which needs to be reported to L1 via the
> hypercall return value.
>
> Currently this assumes that the L0 and L1 hypervisors are the same
> endianness, and the structs passed as arguments are in native
> endianness. If they are of different endianness, the version number
> check will fail and the hcall will be rejected.
>
> Nested hypervisors do not support indep_threads_mode=N, so this adds
> code to print a warning message if the administrator has set
> indep_threads_mode=N, and treat it as Y.
>
> Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2018-10-03 5:12 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-02 11:30 [PATCH v3 00/33] KVM: PPC: Book3S HV: Nested HV virtualization Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 01/33] powerpc: Turn off CPU_FTR_P9_TM_HV_ASSIST in non-hypervisor mode Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 02/33] KVM: PPC: Book3S: Simplify external interrupt handling Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 03/33] KVM: PPC: Book3S HV: Remove left-over code in XICS-on-XIVE emulation Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 04/33] KVM: PPC: Book3S HV: Move interrupt delivery on guest entry to C code Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 05/33] KVM: PPC: Book3S HV: Extract PMU save/restore operations as C-callable functions Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 06/33] KVM: PPC: Book3S HV: Simplify real-mode interrupt handling Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 07/33] KVM: PPC: Book3S: Rework TM save/restore code and make it C-callable Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 08/33] KVM: PPC: Book3S HV: Call kvmppc_handle_exit_hv() with vcore unlocked Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 09/33] KVM: PPC: Book3S HV: Streamlined guest entry/exit path on P9 for radix guests Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 10/33] KVM: PPC: Book3S HV: Handle hypervisor instruction faults better Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 11/33] KVM: PPC: Book3S HV: Add a debugfs file to dump radix mappings Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 12/33] KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 13/33] KVM: PPC: Book3S HV: Clear partition table entry on vm teardown Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 14/33] KVM: PPC: Book3S HV: Make kvmppc_mmu_radix_xlate process/partition table agnostic Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 15/33] KVM: PPC: Book3S HV: Refactor radix page fault handler Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 16/33] KVM: PPC: Book3S HV: Use kvmppc_unmap_pte() in kvm_unmap_radix() Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 17/33] KVM: PPC: Book3S HV: Framework and hcall stubs for nested virtualization Paul Mackerras
2018-10-03 3:17 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 18/33] KVM: PPC: Book3S HV: Nested guest entry via hypercall Paul Mackerras
2018-10-03 5:12 ` David Gibson [this message]
2018-10-02 11:31 ` [PATCH v3 19/33] KVM: PPC: Book3S HV: Use XICS hypercalls when running as a nested hypervisor Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 20/33] KVM: PPC: Book3S HV: Handle hypercalls correctly when nested Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 21/33] KVM: PPC: Book3S HV: Framework to handle HV Emulation Assist Interrupt Paul Mackerras
2018-10-03 5:13 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 22/33] KVM: PPC: Book3S HV: Handle page fault for a nested guest Paul Mackerras
2018-10-03 5:39 ` David Gibson
2018-10-03 5:42 ` David Gibson
2018-10-04 9:21 ` Paul Mackerras
2018-10-05 2:46 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 23/33] KVM: PPC: Book3S HV: Introduce rmap to track nested guest mappings Paul Mackerras
2018-10-03 5:56 ` David Gibson
2018-10-04 3:05 ` Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 24/33] KVM: PPC: Book3S HV: Emulate Privileged TLBIE for guest hypervisors Paul Mackerras
2018-10-03 5:56 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 25/33] KVM: PPC: Book3S HV: Invalidate TLB when nested vcpu moves physical cpu Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 26/33] KVM: PPC: Book3S HV: Don't access HFSCR, LPIDR or LPCR when running nested Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 27/33] KVM: PPC: Book3S HV: Add one-reg interface to virtual PTCR register Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 28/33] KVM: PPC: Book3S HV: Sanitise hv_regs on nested guest entry Paul Mackerras
2018-10-03 6:07 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 29/33] KVM: PPC: Book3S HV: Handle differing endianness for H_ENTER_NESTED Paul Mackerras
2018-10-03 6:13 ` David Gibson
2018-10-04 9:29 ` Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 30/33] KVM: PPC: Book3S HV: Allow HV module to load without hypervisor mode Paul Mackerras
2018-10-03 6:15 ` David Gibson
2018-10-04 3:03 ` Paul Mackerras
2018-10-05 3:05 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 31/33] KVM: PPC: Book3S HV: Add nested shadow page tables to debugfs Paul Mackerras
2018-10-02 11:31 ` [PATCH v3 32/33] KVM: PPC: Book3S HV: Use hypercalls for TLB invalidation when nested Paul Mackerras
2018-10-03 6:17 ` David Gibson
2018-10-02 11:31 ` [PATCH v3 33/33] KVM: PPC: Book3S HV: Add a VM capability to enable nested virtualization Paul Mackerras
2018-10-03 6:21 ` David Gibson
2018-10-04 9:48 ` Paul Mackerras
2018-10-05 3:29 ` David Gibson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181003051210.GN1886@umbus.fritz.box \
--to=david@gibson.dropbear.id.au \
--cc=kvm-ppc@vger.kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=paulus@ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox