From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: [PATCH v3 10/15] x86/paravirt: introduce new config option PARAVIRT_XXL Date: Tue, 28 Aug 2018 09:40:21 +0200 Message-ID: <20180828074026.820-11-jgross__31142.4072985121$1535442683$gmane$org@suse.com> References: <20180828074026.820-1-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180828074026.820-1-jgross@suse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org, virtualization@lists.linux-foundation.org Cc: Juergen Gross , boris.ostrovsky@oracle.com, rusty@rustcorp.com.au, mingo@redhat.com, hpa@zytor.com, akataria@vmware.com, tglx@linutronix.de List-Id: virtualization@lists.linuxfoundation.org A large amount of paravirt ops is used by Xen PV guests only. Add a new config option PARAVIRT_XXL which is selected by XEN_PV. Later we can put the Xen PV only paravirt ops under the PARAVIRT_XXL umbrella. Since irq related paravirt ops are used only by VSMP and Xen PV, let VSMP select PARAVIRT_XXL, too, in order to enable moving the irq ops under PARAVIRT_XXL. Signed-off-by: Juergen Gross --- V3: - let VSMP select PARAVIRT_XXL (Peter Zijlstra) --- arch/x86/Kconfig | 4 ++++ arch/x86/boot/compressed/misc.h | 1 + arch/x86/mm/mem_encrypt_identity.c | 1 + arch/x86/xen/Kconfig | 1 + 4 files changed, 7 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c5ff296bc5d1..61dfdb694483 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -523,6 +523,7 @@ config X86_VSMP bool "ScaleMP vSMP" select HYPERVISOR_GUEST select PARAVIRT + select PARAVIRT_XXL depends on X86_64 && PCI depends on X86_EXTENDED_PLATFORM depends on SMP @@ -754,6 +755,9 @@ config PARAVIRT over full virtualization. However, when run without a hypervisor the kernel is theoretically slower and slightly larger. +config PARAVIRT_XXL + bool + config PARAVIRT_DEBUG bool "paravirt-ops debugging" depends on PARAVIRT && DEBUG_KERNEL diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index a423bdb42686..a1d5918765f3 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -9,6 +9,7 @@ * paravirt and debugging variants are added.) */ #undef CONFIG_PARAVIRT +#undef CONFIG_PARAVIRT_XXL #undef CONFIG_PARAVIRT_SPINLOCKS #undef CONFIG_KASAN diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c index 7ae36868aed2..a19ef1a416ff 100644 --- a/arch/x86/mm/mem_encrypt_identity.c +++ b/arch/x86/mm/mem_encrypt_identity.c @@ -27,6 +27,7 @@ * be extended when new paravirt and debugging variants are added.) */ #undef CONFIG_PARAVIRT +#undef CONFIG_PARAVIRT_XXL #undef CONFIG_PARAVIRT_SPINLOCKS #include diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index c1f98f32c45f..dd92d7bd3613 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -18,6 +18,7 @@ config XEN_PV bool "Xen PV guest support" default y depends on XEN + select PARAVIRT_XXL select XEN_HAVE_PVMMU select XEN_HAVE_VPMU help -- 2.16.4