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From: Sean Christopherson <seanjc@google.com>
To: Aaron Lewis <aaronlewis@google.com>
Cc: kvm@vger.kernel.org, pbonzini@redhat.com, jmattson@google.com
Subject: Re: [PATCH 6/8] KVM: selftests: Add additional pages to the guest to accommodate ucall
Date: Thu, 23 Mar 2023 15:07:25 -0700	[thread overview]
Message-ID: <ZBzNnepO0HMshwYD@google.com> (raw)
In-Reply-To: <20230301053425.3880773-7-aaronlewis@google.com>

On Wed, Mar 01, 2023, Aaron Lewis wrote:
> Add additional pages to the guest to account for the number of pages
> the ucall framework uses.
> 
> This is done in preparation for adding string formatting options to
> the guest through ucall helpers.
> 
> Signed-off-by: Aaron Lewis <aaronlewis@google.com>
> ---
>  tools/testing/selftests/kvm/include/ucall_common.h | 1 +
>  tools/testing/selftests/kvm/lib/kvm_util.c         | 4 ++++
>  tools/testing/selftests/kvm/lib/ucall_common.c     | 5 +++++
>  3 files changed, 10 insertions(+)
> 
> diff --git a/tools/testing/selftests/kvm/include/ucall_common.h b/tools/testing/selftests/kvm/include/ucall_common.h
> index 1a6aaef5ccae..0b1fde23729b 100644
> --- a/tools/testing/selftests/kvm/include/ucall_common.h
> +++ b/tools/testing/selftests/kvm/include/ucall_common.h
> @@ -34,6 +34,7 @@ void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu);
>  void ucall(uint64_t cmd, int nargs, ...);
>  uint64_t get_ucall(struct kvm_vcpu *vcpu, struct ucall *uc);
>  void ucall_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa);
> +int ucall_header_size(void);

I like keeping the ucall_header definition in ucall_common.c, but we should hide
away the detail that it's a "header" (which doesn't even really make sense to me).

E.g. maybe ucall_nr_pages_required()?  And then obviously do the align_up() and
whatnot in the helper.

  reply	other threads:[~2023-03-23 22:07 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-01  5:34 [PATCH 0/8] Add printf and formatted asserts in the guest Aaron Lewis
2023-03-01  5:34 ` [PATCH 1/8] KVM: selftests: Hoist XGETBV and XSETBV to make them more accessible Aaron Lewis
2023-03-01  5:34 ` [PATCH 2/8] KVM: selftests: Add XFEATURE masks to common code Aaron Lewis
2023-03-01  5:34 ` [PATCH 3/8] KVM: selftests: Add strnlen() to the string overrides Aaron Lewis
2023-03-01  5:34 ` [PATCH 4/8] KVM: selftests: Copy printf.c to KVM selftests Aaron Lewis
2023-03-23 22:04   ` Sean Christopherson
2023-04-17 15:59     ` Aaron Lewis
2023-04-18 15:03       ` Sean Christopherson
2023-04-18 16:06         ` Andrew Jones
2023-04-20 17:50           ` Sean Christopherson
2023-04-21  6:03             ` Andrew Jones
2023-03-01  5:34 ` [PATCH 5/8] KVM: selftests: Add vsprintf() " Aaron Lewis
2023-03-23 21:59   ` Sean Christopherson
2023-04-17 16:08     ` Aaron Lewis
2023-04-18 15:04       ` Sean Christopherson
2023-03-01  5:34 ` [PATCH 6/8] KVM: selftests: Add additional pages to the guest to accommodate ucall Aaron Lewis
2023-03-23 22:07   ` Sean Christopherson [this message]
2023-03-01  5:34 ` [PATCH 7/8] KVM: selftests: Add string formatting options to ucall Aaron Lewis
2023-03-01  8:07   ` Shaoqin Huang
2023-03-02 14:52     ` Aaron Lewis
2023-03-23 22:12   ` Sean Christopherson
2023-03-01  5:34 ` [PATCH 8/8] KVM: selftests: Add a selftest for guest prints and formatted asserts Aaron Lewis
2023-03-23 20:57 ` [PATCH 0/8] Add printf and formatted asserts in the guest Sean Christopherson

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