diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-03-14 18:35:38 +0100 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2017-05-02 10:50:19 +0200 |
| commit | 5e57f1d607d1cc0f54611162525ca6436e17e8b7 (patch) | |
| tree | 314ee415de2627f2577221a8a98cdce6914afbf7 /arch | |
| parent | 52519f2af020b6b53b4e0cbb8cff71058ed434cd (diff) | |
| download | linux-5e57f1d607d1cc0f54611162525ca6436e17e8b7.tar.bz2 | |
x86/xen: add CONFIG_XEN_PV to Kconfig
All code to support Xen PV will get under this new option. For the
beginning, check for it in the common code.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/hypervisor.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/process_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/xen/Kconfig | 23 |
3 files changed, 22 insertions, 7 deletions
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c index a77f18d139c0..ce6fcc30f2ad 100644 --- a/arch/x86/kernel/cpu/hypervisor.c +++ b/arch/x86/kernel/cpu/hypervisor.c @@ -28,8 +28,10 @@ static const __initconst struct hypervisor_x86 * const hypervisors[] = { -#ifdef CONFIG_XEN +#ifdef CONFIG_XEN_PV &x86_hyper_xen_pv, +#endif +#ifdef CONFIG_XEN_PVHVM &x86_hyper_xen_hvm, #endif &x86_hyper_vmware, diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 825a1e47cf3e..b6840bf3940b 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -446,7 +446,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p) task_thread_info(prev_p)->flags & _TIF_WORK_CTXSW_PREV)) __switch_to_xtra(prev_p, next_p, tss); -#ifdef CONFIG_XEN +#ifdef CONFIG_XEN_PV /* * On Xen PV, IOPL bits in pt_regs->flags have no effect, and * current_pt_regs()->flags may not match the current task's diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig index 76b6dbd627df..5bb14341f639 100644 --- a/arch/x86/xen/Kconfig +++ b/arch/x86/xen/Kconfig @@ -6,7 +6,6 @@ config XEN bool "Xen guest support" depends on PARAVIRT select PARAVIRT_CLOCK - select XEN_HAVE_PVMMU select XEN_HAVE_VPMU depends on X86_64 || (X86_32 && X86_PAE) depends on X86_LOCAL_APIC && X86_TSC @@ -15,18 +14,32 @@ config XEN kernel to boot in a paravirtualized environment under the Xen hypervisor. +config XEN_PV + bool "Xen PV guest support" + default y + depends on XEN + select XEN_HAVE_PVMMU + help + Support running as a Xen PV guest. + config XEN_DOM0 - def_bool y - depends on XEN && PCI_XEN && SWIOTLB_XEN + bool "Xen PV Dom0 support" + default y + depends on XEN_PV && PCI_XEN && SWIOTLB_XEN depends on X86_IO_APIC && ACPI && PCI + help + Support running as a Xen PV Dom0 guest. config XEN_PVHVM - def_bool y + bool "Xen PVHVM guest support" + default y depends on XEN && PCI && X86_LOCAL_APIC + help + Support running as a Xen PVHVM guest. config XEN_512GB bool "Limit Xen pv-domain memory to 512GB" - depends on XEN && X86_64 + depends on XEN_PV && X86_64 default y help Limit paravirtualized user domains to 512GB of RAM. |