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Re: [Xen-devel] [RFC PATCH v4 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH
- To: Paolo Bonzini <pbonzini@xxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, jgross@xxxxxxxx, roger.pau@xxxxxxxxxx, andrew.cooper3@xxxxxxxxxx, hch@xxxxxxxxxxxxx, JBeulich@xxxxxxxx, x86@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx
- From: Maran Wilson <maran.wilson@xxxxxxxxxx>
- Date: Thu, 1 Mar 2018 09:24:13 -0800
- Cc: thomas.lendacky@xxxxxxx, linus.walleij@xxxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, rkrcmar@xxxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx, mchehab@xxxxxxxxxx, hpa@xxxxxxxxx, mingo@xxxxxxxxxx, rdunlap@xxxxxxxxxxxxx, luto@xxxxxxxxxx, jpoimboe@xxxxxxxxxx, tglx@xxxxxxxxxxxxx, bp@xxxxxxx, davem@xxxxxxxxxxxxx, kirill.shutemov@xxxxxxxxxxxxxxx
- Delivery-date: Thu, 01 Mar 2018 17:25:11 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 3/1/2018 7:17 AM, Paolo Bonzini wrote:
On 01/03/2018 16:02, Boris Ostrovsky wrote:
On 02/28/2018 01:27 PM, Maran Wilson wrote:
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index eb7f43f23521..fa7cd0305125 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -791,6 +791,14 @@ config KVM_GUEST
underlying device model, the host provides the guest with
timing infrastructure such as time of day, and system time
+config PVH
+ bool "Support for running PVH guests"
+ depends on KVM_GUEST || XEN
Not sure about XEN part. PVH is selected by XEN_PVH for Xen.
What about introducing KVM_GUEST_PVH that will select PVH and then drop
dependency here?
That is, "config KVM_GUEST_PVH" "depends on KVM_GUEST" "select PVH".
Sounds good to me.
OK, will do.
Thanks,
-Maran
Paolo
-boris
+ def_bool n
+ ---help---
+ This option enables the PVH entry point for guest virtual machines
+ as specified in the x86/HVM direct boot ABI.
+
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index f605825a04ab..021c8591c3c0 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -77,8 +77,9 @@ config XEN_DEBUG_FS
Enabling this option may incur a significant performance overhead.
config XEN_PVH
- bool "Support for running as a PVH guest"
+ bool "Support for running as a Xen PVH guest"
depends on XEN && XEN_PVHVM && ACPI
# Pre-built page tables are not ready to handle 5-level paging.
depends on !X86_5LEVEL
+ select PVH
def_bool n
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