From: Maran Wilson <maran.wilson@oracle.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org,
xen-devel@lists.xenproject.org, kvm@vger.kernel.org,
pbonzini@redhat.com, jgross@suse.com
Cc: thomas.lendacky@amd.com, maran.wilson@oracle.com,
dave.hansen@linux.intel.com, rkrcmar@redhat.com, hpa@zytor.com,
mingo@redhat.com, rdunlap@infradead.org, luto@kernel.org,
jpoimboe@redhat.com, tglx@linutronix.de, bp@suse.de,
boris.ostrovsky@oracle.com, kirill.shutemov@linux.intel.com,
roger.pau@citrix.com
Subject: [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH
Date: Wed, 5 Dec 2018 22:04:17 -0800 [thread overview]
Message-ID: <1544076257-21792-1-git-send-email-maran.wilson__49841.9655989439$1544076232$gmane$org@oracle.com> (raw)
In-Reply-To: <1544076152-21637-1-git-send-email-maran.wilson@oracle.com>
In order to pave the way for hypervisors other than Xen to use the PVH
entry point for VMs, we need to factor the PVH entry code into Xen specific
and hypervisor agnostic components. The first step in doing that, is to
create a new config option for PVH entry that can be enabled
independently from CONFIG_XEN.
Signed-off-by: Maran Wilson <maran.wilson@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
---
arch/x86/Kconfig | 6 ++++++
arch/x86/kernel/head_64.S | 2 +-
arch/x86/xen/Kconfig | 3 ++-
3 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8689e794a43c..c2a22a74abee 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -796,6 +796,12 @@ 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"
+ ---help---
+ This option enables the PVH entry point for guest virtual machines
+ as specified in the x86/HVM direct boot ABI.
+
config KVM_DEBUG_FS
bool "Enable debug information for KVM Guests in debugfs"
depends on KVM_GUEST && DEBUG_FS
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 747c758f67b7..d1dbe8e4eb82 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -386,7 +386,7 @@ NEXT_PAGE(early_dynamic_pgts)
.data
-#if defined(CONFIG_XEN_PV) || defined(CONFIG_XEN_PVH)
+#if defined(CONFIG_XEN_PV) || defined(CONFIG_PVH)
NEXT_PGD_PAGE(init_top_pgt)
.quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
.org init_top_pgt + L4_PAGE_OFFSET*8, 0
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 1ef391aa184d..e07abefd3d26 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -74,6 +74,7 @@ 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
+ select PVH
def_bool n
--
2.16.1
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next parent reply other threads:[~2018-12-06 6:05 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1544076152-21637-1-git-send-email-maran.wilson@oracle.com>
2018-12-06 6:04 ` Maran Wilson [this message]
2018-12-06 6:04 ` [PATCH v8 2/7] xen/pvh: Move PVH entry code out of Xen specific tree Maran Wilson
2018-12-06 6:05 ` [PATCH v8 3/7] xen/pvh: Create a new file for Xen specific PVH code Maran Wilson
2018-12-06 6:05 ` [PATCH v8 4/7] xen/pvh: Move Xen specific PVH VM initialization out of common file Maran Wilson
2018-12-06 6:05 ` [PATCH v8 5/7] xen/pvh: Move Xen code for getting mem map via hcall " Maran Wilson
2018-12-06 6:06 ` [PATCH v8 6/7] xen/pvh: Add memory map pointer to hvm_start_info struct Maran Wilson
2018-12-06 6:06 ` [PATCH v8 7/7] KVM: x86: Allow Qemu/KVM to use PVH entry point Maran Wilson
2018-12-06 21:21 ` [PATCH v8 0/7] " Paolo Bonzini
[not found] ` <e8ed34e7-f82a-2314-9919-185d48510715@redhat.com>
2018-12-06 21:37 ` Borislav Petkov
[not found] ` <20181206213752.GL3986@zn.tnic>
2018-12-06 21:58 ` Boris Ostrovsky
[not found] ` <147cc043-b0af-74e9-5259-8c7854f82d8b@oracle.com>
2018-12-06 22:14 ` Paolo Bonzini
[not found] ` <63756df6-6f0b-fdfa-932e-b53d173da5be@redhat.com>
2018-12-07 10:25 ` Borislav Petkov
[not found] ` <20181207102546.GC9385@zn.tnic>
2018-12-07 16:07 ` Boris Ostrovsky
[not found] ` <e6b86f5a-ef90-8770-8091-5a143ab00754@oracle.com>
2018-12-07 19:22 ` Borislav Petkov
2018-12-12 18:09 ` Maran Wilson
[not found] ` <faae2cec-1ff2-74eb-69c8-b75f64cfca3a@oracle.com>
2018-12-12 18:17 ` Boris Ostrovsky
2018-12-13 13:13 ` Paolo Bonzini
[not found] ` <1544076395-22187-1-git-send-email-maran.wilson@oracle.com>
2018-12-06 22:05 ` [PATCH v8 7/7] " Paolo Bonzini
[not found] ` <1544076257-21792-1-git-send-email-maran.wilson@oracle.com>
2018-12-06 22:11 ` [PATCH v8 1/7] xen/pvh: Split CONFIG_XEN_PVH into CONFIG_PVH and CONFIG_XEN_PVH Paolo Bonzini
[not found] ` <d532f023-85f9-62b9-ca56-53a619fdcd1e@redhat.com>
2018-12-06 22:34 ` Boris Ostrovsky
[not found] ` <3b4fdddd-67d8-30d3-2a5d-c4d07b6f31c9@oracle.com>
2018-12-06 22:49 ` Paolo Bonzini
[not found] ` <e76da394-c721-87ae-c721-1f6efdc93a50@redhat.com>
2018-12-06 23:11 ` Boris Ostrovsky
[not found] ` <becd5f82-0cca-f74b-93bd-6b4f13bc8bf0@oracle.com>
2018-12-06 23:30 ` Paolo Bonzini
[not found] ` <cef985c3-a687-c1af-83ac-2c71af45a366@redhat.com>
2018-12-06 23:36 ` Andrew Cooper
2018-12-07 6:02 ` Juergen Gross
[not found] ` <2c289956-0e6a-700c-605d-83685fbb08f9@suse.com>
2018-12-07 13:41 ` Paolo Bonzini
[not found] ` <0a2f692a-f7df-8ad1-9d34-96f5e36926db@redhat.com>
2018-12-07 13:50 ` Juergen Gross
[not found] ` <3f95d053-87aa-ad45-03e6-1e1977283eb4@suse.com>
2018-12-07 13:52 ` Paolo Bonzini
[not found] ` <d0fd8799-35ea-fba5-9d0d-94feead85943@redhat.com>
2018-12-07 13:58 ` Juergen Gross
[not found] ` <5d1d0071-1db4-ea03-027f-2a12812b78d0@suse.com>
2018-12-07 15:14 ` Paolo Bonzini
[not found] ` <d18b961a-d115-8d12-8ee4-eb1a3466959c@redhat.com>
2018-12-07 18:21 ` Maran Wilson
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