From: Paul Mackerras <paulus@ozlabs.org>
To: Bharata B Rao <bharata@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
linux-mm@kvack.org, paulus@au1.ibm.com,
aneesh.kumar@linux.vnet.ibm.com, jglisse@redhat.com,
linuxram@us.ibm.com, sukadev@linux.vnet.ibm.com,
cclaudio@linux.ibm.com
Subject: Re: [PATCH v4 3/6] kvmppc: H_SVM_INIT_START and H_SVM_INIT_DONE hcalls
Date: Mon, 17 Jun 2019 15:37:56 +1000 [thread overview]
Message-ID: <20190617053756.z4disbs5vncxneqj@oak.ozlabs.ibm.com> (raw)
In-Reply-To: <20190528064933.23119-4-bharata@linux.ibm.com>
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.
Apart from that this patch looks fine.
> Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
next prev parent reply other threads:[~2019-06-17 5:39 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 [this message]
2019-07-09 10:04 ` Bharata B Rao
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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