Linux-HyperV Archive on lore.kernel.org
 help / color / Atom feed
From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: Michael Kelley <mikelley@microsoft.com>
Cc: mikelley@microsoft.com, kys@microsoft.com,
	haiyangz@microsoft.com, sthemmin@microsoft.com,
	wei.liu@kernel.org, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, x86@kernel.org, hpa@zytor.com, pbonzini@redhat.com,
	sean.j.christopherson@intel.com, wanpengli@tencent.com,
	jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org
Subject: Re: [PATCH v2 4/4] asm-generic/hyperv: Add definitions for Get/SetVpRegister hypercalls
Date: Thu, 23 Apr 2020 11:46:16 +0200
Message-ID: <87r1wepmaf.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <20200422195737.10223-5-mikelley@microsoft.com>

Michael Kelley <mikelley@microsoft.com> writes:

> Add definitions for GetVpRegister and SetVpRegister hypercalls, which
> are implemented for both x86 and ARM64.
>
> Signed-off-by: Michael Kelley <mikelley@microsoft.com>
> ---
>  include/asm-generic/hyperv-tlfs.h | 51 +++++++++++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>
> diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h
> index 1f92ef92eb56..262fae9526b1 100644
> --- a/include/asm-generic/hyperv-tlfs.h
> +++ b/include/asm-generic/hyperv-tlfs.h
> @@ -141,6 +141,8 @@ struct ms_hyperv_tsc_page {
>  #define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX	0x0013
>  #define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX	0x0014
>  #define HVCALL_SEND_IPI_EX			0x0015
> +#define HVCALL_GET_VP_REGISTERS			0x0050
> +#define HVCALL_SET_VP_REGISTERS			0x0051
>  #define HVCALL_POST_MESSAGE			0x005c
>  #define HVCALL_SIGNAL_EVENT			0x005d
>  #define HVCALL_RETARGET_INTERRUPT		0x007e
> @@ -439,4 +441,53 @@ struct hv_retarget_device_interrupt {
>  	struct hv_device_interrupt_target int_target;
>  } __packed __aligned(8);
>  
> +
> +/* HvGetVpRegisters hypercall input with variable size reg name list*/
> +struct hv_get_vp_registers_input {
> +	struct {
> +		u64 partitionid;
> +		u32 vpindex;
> +		u8  inputvtl;
> +		u8  padding[3];
> +	} header;
> +	struct input {
> +		u32 name0;
> +		u32 name1;
> +	} element[];
> +} __packed;
> +
> +
> +/* HvGetVpRegisters returns an array of these output elements */
> +struct hv_get_vp_registers_output {
> +	union {
> +		struct {
> +			u32 a;
> +			u32 b;
> +			u32 c;
> +			u32 d;
> +		} as32 __packed;
> +		struct {
> +			u64 low;
> +			u64 high;
> +		} as64 __packed;
> +	};
> +};
> +
> +/* HvSetVpRegisters hypercall with variable size reg name/value list*/
> +struct hv_set_vp_registers_input {
> +	struct {
> +		u64 partitionid;
> +		u32 vpindex;
> +		u8  inputvtl;
> +		u8  padding[3];
> +	} header;
> +	struct {
> +		u32 name;
> +		u32 padding1;
> +		u64 padding2;
> +		u64 valuelow;
> +		u64 valuehigh;
> +	} element[];
> +} __packed;
> +
>  #endif

Thank you for making these changes,

Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>

-- 
Vitaly


  reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-22 19:57 [PATCH v2 0/4] Split hyperv-tlfs.h into generic and arch specific files Michael Kelley
2020-04-22 19:57 ` [PATCH v2 1/4] KVM: x86: hyperv: Remove duplicate definitions of Reference TSC Page Michael Kelley
2020-04-22 19:57 ` [PATCH v2 2/4] x86/hyperv: Remove HV_PROCESSOR_POWER_STATE #defines Michael Kelley
2020-04-22 19:57 ` [PATCH v2 3/4] x86/hyperv: Split hyperv-tlfs.h into arch dependent and independent files Michael Kelley
2020-04-22 19:57 ` [PATCH v2 4/4] asm-generic/hyperv: Add definitions for Get/SetVpRegister hypercalls Michael Kelley
2020-04-23  9:46   ` Vitaly Kuznetsov [this message]
2020-04-23 13:22 ` [PATCH v2 0/4] Split hyperv-tlfs.h into generic and arch specific files Wei Liu

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=87r1wepmaf.fsf@vitty.brq.redhat.com \
    --to=vkuznets@redhat.com \
    --cc=bp@alien8.de \
    --cc=haiyangz@microsoft.com \
    --cc=hpa@zytor.com \
    --cc=jmattson@google.com \
    --cc=joro@8bytes.org \
    --cc=kvm@vger.kernel.org \
    --cc=kys@microsoft.com \
    --cc=linux-hyperv@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mikelley@microsoft.com \
    --cc=mingo@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=sean.j.christopherson@intel.com \
    --cc=sthemmin@microsoft.com \
    --cc=tglx@linutronix.de \
    --cc=wanpengli@tencent.com \
    --cc=wei.liu@kernel.org \
    --cc=x86@kernel.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

Linux-HyperV Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-hyperv/0 linux-hyperv/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-hyperv linux-hyperv/ https://lore.kernel.org/linux-hyperv \
		linux-hyperv@vger.kernel.org
	public-inbox-index linux-hyperv

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-hyperv


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git