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From: Andrew Cooper <amc96@srcf.net>
To: Jan Beulich <jbeulich@suse.com>,
	"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
Cc: "Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Wei Liu" <wl@xen.org>, "Roger Pau Monné" <roger.pau@citrix.com>,
	"Paul Durrant" <paul@xen.org>,
	"Tamas K Lengyel" <tamas@tklengyel.com>,
	"Petre Pircalabu" <ppircalabu@bitdefender.com>,
	"Alexandru Isaila" <aisaila@bitdefender.com>
Subject: Re: [PATCH v2] x86/HVM: convert remaining hvm_funcs hook invocations to alt-call
Date: Thu, 13 Jan 2022 18:29:55 +0000	[thread overview]
Message-ID: <87307be7-ec4b-35f7-ef6a-29abdcecc6c3@srcf.net> (raw)
In-Reply-To: <ed34964c-c612-497f-0350-b9202c0ba057@suse.com>

On 13/01/2022 17:02, Jan Beulich wrote:
> The aim being to have as few indirect calls as possible (see [1]),
> whereas during initial conversion performance was the main aspect and
> hence rarely used hooks didn't get converted. Apparently one use of
> get_interrupt_shadow() was missed at the time.
>
> While doing this, drop NULL checks ahead of CPU management and .nhvm_*()
> calls when the hook is always present. Also convert the
> .nhvm_vcpu_reset() call to alternative_vcall(), as the return value is
> unused and the caller has currently no way of propagating it.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>


  reply	other threads:[~2022-01-13 18:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-13 17:02 [PATCH v2] x86/HVM: convert remaining hvm_funcs hook invocations to alt-call Jan Beulich
2022-01-13 18:29 ` Andrew Cooper [this message]
2022-01-14 14:28 ` Tamas K Lengyel

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