From: Bharata B Rao <bharata@linux.ibm.com>
To: Paul Mackerras <paulus@ozlabs.org>
Cc: linuxram@us.ibm.com, cclaudio@linux.ibm.com,
kvm-ppc@vger.kernel.org, linux-mm@kvack.org, jglisse@redhat.com,
aneesh.kumar@linux.vnet.ibm.com, paulus@au1.ibm.com,
sukadev@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v4 3/6] kvmppc: H_SVM_INIT_START and H_SVM_INIT_DONE hcalls
Date: Tue, 9 Jul 2019 15:34:57 +0530 [thread overview]
Message-ID: <20190709100457.GB27933@in.ibm.com> (raw)
In-Reply-To: <20190617053756.z4disbs5vncxneqj@oak.ozlabs.ibm.com>
On Mon, Jun 17, 2019 at 03:37:56PM +1000, Paul Mackerras wrote:
> On Tue, May 28, 2019 at 12:19:30PM +0530, Bharata B Rao wrote:
> > H_SVM_INIT_START: Initiate securing a VM
> > H_SVM_INIT_DONE: Conclude securing a VM
> >
> > As part of H_SVM_INIT_START register all existing memslots with the UV.
> > H_SVM_INIT_DONE call by UV informs HV that transition of the guest
> > to secure mode is complete.
>
> It is worth mentioning here that setting any of the flag bits in
> kvm->arch.secure_guest will cause the assembly code that enters the
> guest to call the UV_RETURN ucall instead of trying to enter the guest
> directly. That's not necessarily obvious to the reader as this patch
> doesn't touch that assembly code.
Documented this in the commit message.
>
> Apart from that this patch looks fine.
>
> > Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
>
> Acked-by: Paul Mackerras <paulus@ozlabs.org>
Thanks,
Bharata.
next prev parent reply other threads:[~2019-07-09 10:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-28 6:49 [PATCH v4 0/6] kvmppc: HMM driver to manage pages of secure guest Bharata B Rao
2019-05-28 6:49 ` [PATCH v4 1/6] kvmppc: HMM backend " Bharata B Rao
2019-06-17 5:31 ` Paul Mackerras
2019-07-09 10:03 ` Bharata B Rao
2019-05-28 6:49 ` [PATCH v4 2/6] kvmppc: Shared pages support for secure guests Bharata B Rao
2019-05-28 6:49 ` [PATCH v4 3/6] kvmppc: H_SVM_INIT_START and H_SVM_INIT_DONE hcalls Bharata B Rao
2019-06-17 5:37 ` Paul Mackerras
2019-07-09 10:04 ` Bharata B Rao [this message]
2019-06-18 23:05 ` Thiago Jung Bauermann
2019-07-09 10:05 ` Bharata B Rao
2019-05-28 6:49 ` [PATCH v4 4/6] kvmppc: Handle memory plug/unplug to secure VM Bharata B Rao
2019-06-17 5:38 ` Paul Mackerras
2019-05-28 6:49 ` [RFC PATCH v4 5/6] kvmppc: Radix changes for secure guest Bharata B Rao
2019-05-28 6:49 ` [RFC PATCH v4 6/6] kvmppc: Support reset of " Bharata B Rao
2019-06-17 4:06 ` Paul Mackerras
2019-07-09 10:06 ` Bharata B Rao
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