From: Stefano Stabellini <sstabellini@kernel.org>
To: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org, boris.ostrovsky@oracle.com,
sstabellini@kernel.org, linux-kernel@vger.kernel.org,
david.vrabel@citrix.com
Subject: Re: [PATCH 1/3] xen: update xen headers
Date: Tue, 5 Jul 2016 16:07:12 +0100 (BST) [thread overview]
Message-ID: <alpine.DEB.2.10.1607051606230.2575@sstabellini-ThinkPad-X260> (raw)
In-Reply-To: <1466579034-12113-2-git-send-email-jgross@suse.com>
On Wed, 22 Jun 2016, Juergen Gross wrote:
> Update some Xen headers to be able to use new functionality.
>
> Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
> include/xen/interface/vcpu.h | 24 +++++++++++++++---------
> include/xen/interface/xen.h | 17 ++++++++++++++++-
> 2 files changed, 31 insertions(+), 10 deletions(-)
>
> diff --git a/include/xen/interface/vcpu.h b/include/xen/interface/vcpu.h
> index b05288c..98188c8 100644
> --- a/include/xen/interface/vcpu.h
> +++ b/include/xen/interface/vcpu.h
> @@ -75,15 +75,21 @@
> */
> #define VCPUOP_get_runstate_info 4
> struct vcpu_runstate_info {
> - /* VCPU's current state (RUNSTATE_*). */
> - int state;
> - /* When was current state entered (system time, ns)? */
> - uint64_t state_entry_time;
> - /*
> - * Time spent in each RUNSTATE_* (ns). The sum of these times is
> - * guaranteed not to drift from system time.
> - */
> - uint64_t time[4];
> + /* VCPU's current state (RUNSTATE_*). */
> + int state;
> + /* When was current state entered (system time, ns)? */
> + uint64_t state_entry_time;
> + /*
> + * Update indicator set in state_entry_time:
> + * When activated via VMASST_TYPE_runstate_update_flag, set during
> + * updates in guest memory mapped copy of vcpu_runstate_info.
> + */
> +#define XEN_RUNSTATE_UPDATE (1ULL << 63)
> + /*
> + * Time spent in each RUNSTATE_* (ns). The sum of these times is
> + * guaranteed not to drift from system time.
> + */
> + uint64_t time[4];
> };
> DEFINE_GUEST_HANDLE_STRUCT(vcpu_runstate_info);
>
> diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
> index d133112..1b0d189 100644
> --- a/include/xen/interface/xen.h
> +++ b/include/xen/interface/xen.h
> @@ -413,7 +413,22 @@ DEFINE_GUEST_HANDLE_STRUCT(mmuext_op);
> /* x86/PAE guests: support PDPTs above 4GB. */
> #define VMASST_TYPE_pae_extended_cr3 3
>
> -#define MAX_VMASST_TYPE 3
> +/*
> + * x86 guests: Sane behaviour for virtual iopl
> + * - virtual iopl updated from do_iret() hypercalls.
> + * - virtual iopl reported in bounce frames.
> + * - guest kernels assumed to be level 0 for the purpose of iopl checks.
> + */
> +#define VMASST_TYPE_architectural_iopl 4
> +
> +/*
> + * All guests: activate update indicator in vcpu_runstate_info
> + * Enable setting the XEN_RUNSTATE_UPDATE flag in guest memory mapped
> + * vcpu_runstate_info during updates of the runstate information.
> + */
> +#define VMASST_TYPE_runstate_update_flag 5
> +
> +#define MAX_VMASST_TYPE 5
>
> #ifndef __ASSEMBLY__
>
> --
> 2.6.6
>
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next prev parent reply other threads:[~2016-07-05 15:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-22 7:03 [PATCH 0/3] xen: add full support for CONFIG_PARAVIRT_TIME_ACCOUNTING Juergen Gross
2016-06-22 7:03 ` [PATCH 1/3] xen: update xen headers Juergen Gross
2016-07-05 15:07 ` Stefano Stabellini [this message]
2016-06-22 7:03 ` [PATCH 2/3] arm/xen: add support for vm_assist hypercall Juergen Gross
2016-06-22 7:03 ` [PATCH 3/3] xen: support runqueue steal time on xen Juergen Gross
2016-07-05 15:23 ` Stefano Stabellini
2016-07-06 4:25 ` Juergen Gross
2016-06-22 15:48 ` [PATCH 0/3] xen: add full support for CONFIG_PARAVIRT_TIME_ACCOUNTING Boris Ostrovsky
[not found] ` <1466579034-12113-3-git-send-email-jgross@suse.com>
2016-07-04 9:21 ` [PATCH 2/3] arm/xen: add support for vm_assist hypercall Juergen Gross
2016-07-04 11:20 ` Julien Grall
2016-07-05 15:03 ` Stefano Stabellini
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