From: Juergen Gross <jgross@suse.com>
To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
x86@kernel.org
Cc: boris.ostrovsky@oracle.com, hpa@zytor.com, tglx@linutronix.de,
mingo@redhat.com, Juergen Gross <jgross@suse.com>
Subject: [PATCH 1/4] xen: move pv irq related functions under CONFIG_XEN_PV umbrella
Date: Tue, 17 Jul 2018 14:01:10 +0200 [thread overview]
Message-ID: <20180717120113.12756-2-jgross@suse.com> (raw)
In-Reply-To: <20180717120113.12756-1-jgross@suse.com>
All functions in arch/x86/xen/irq.c and arch/x86/xen/xen-asm*.S are
specific to PV guests. Include them in the kernel with
CONFIG_XEN_PV only.
Make the PV specific code in arch/x86/entry/entry_*.S dependent on
CONFIG_XEN_PV instead of CONFIG_XEN.
While at it reformat the Makefile to make it more readable.
Signed-off-by: Juergen Gross <jgross@suse.com>
---
arch/x86/entry/entry_32.S | 8 +++++---
arch/x86/entry/entry_64.S | 8 +++++---
arch/x86/xen/Makefile | 41 +++++++++++++++++++++++++++++++----------
3 files changed, 41 insertions(+), 16 deletions(-)
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index c371bfee137a..9ab289564dda 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -369,7 +369,7 @@ GLOBAL(__begin_SYSENTER_singlestep_region)
* will ignore all of the single-step traps generated in this range.
*/
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PV
/*
* Xen doesn't set %esp to be precisely what the normal SYSENTER
* entry point expects, so fix it up before using the normal path.
@@ -807,7 +807,7 @@ ENTRY(spurious_interrupt_bug)
jmp common_exception
END(spurious_interrupt_bug)
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PV
ENTRY(xen_hypervisor_callback)
pushl $-1 /* orig_ax = -1 => not a system call */
SAVE_ALL
@@ -888,11 +888,13 @@ ENTRY(xen_failsafe_callback)
_ASM_EXTABLE(3b, 8b)
_ASM_EXTABLE(4b, 9b)
ENDPROC(xen_failsafe_callback)
+#endif /* CONFIG_XEN_PV */
+#ifdef CONFIG_XEN
BUILD_INTERRUPT3(xen_hvm_callback_vector, HYPERVISOR_CALLBACK_VECTOR,
xen_evtchn_do_upcall)
+#endif
-#endif /* CONFIG_XEN */
#if IS_ENABLED(CONFIG_HYPERV)
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 73a522d53b53..dbcd507c6ac6 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1049,7 +1049,7 @@ ENTRY(do_softirq_own_stack)
ret
ENDPROC(do_softirq_own_stack)
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PV
idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
/*
@@ -1129,11 +1129,13 @@ ENTRY(xen_failsafe_callback)
ENCODE_FRAME_POINTER
jmp error_exit
END(xen_failsafe_callback)
+#endif /* CONFIG_XEN_PV */
+#ifdef CONFIG_XEN
apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
xen_hvm_callback_vector xen_evtchn_do_upcall
+#endif
-#endif /* CONFIG_XEN */
#if IS_ENABLED(CONFIG_HYPERV)
apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
@@ -1150,7 +1152,7 @@ idtentry debug do_debug has_error_code=0 paranoid=1 shift_ist=DEBUG_STACK
idtentry int3 do_int3 has_error_code=0
idtentry stack_segment do_stack_segment has_error_code=1
-#ifdef CONFIG_XEN
+#ifdef CONFIG_XEN_PV
idtentry xennmi do_nmi has_error_code=0
idtentry xendebug do_debug has_error_code=0
idtentry xenint3 do_int3 has_error_code=0
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index d83cb5478f54..f723b5aa8f74 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -12,25 +12,46 @@ endif
# Make sure early boot has no stackprotector
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_enlighten_pv.o := $(nostackp)
-CFLAGS_mmu_pv.o := $(nostackp)
+CFLAGS_mmu_pv.o := $(nostackp)
-obj-y := enlighten.o multicalls.o mmu.o irq.o \
- time.o xen-asm.o xen-asm_$(BITS).o \
- grant-table.o suspend.o platform-pci-unplug.o
+obj-y += enlighten.o
+obj-y += multicalls.o
+obj-y += mmu.o
+obj-y += time.o
+obj-y += grant-table.o
+obj-y += suspend.o
+obj-y += platform-pci-unplug.o
-obj-$(CONFIG_XEN_PVHVM) += enlighten_hvm.o mmu_hvm.o suspend_hvm.o
-obj-$(CONFIG_XEN_PV) += setup.o apic.o pmu.o suspend_pv.o \
- p2m.o enlighten_pv.o mmu_pv.o
-obj-$(CONFIG_XEN_PVH) += enlighten_pvh.o
+obj-$(CONFIG_XEN_PVHVM) += enlighten_hvm.o
+obj-$(CONFIG_XEN_PVHVM) += mmu_hvm.o
+obj-$(CONFIG_XEN_PVHVM) += suspend_hvm.o
-obj-$(CONFIG_EVENT_TRACING) += trace.o
+obj-$(CONFIG_XEN_PV) += setup.o
+obj-$(CONFIG_XEN_PV) += apic.o
+obj-$(CONFIG_XEN_PV) += pmu.o
+obj-$(CONFIG_XEN_PV) += suspend_pv.o
+obj-$(CONFIG_XEN_PV) += p2m.o
+obj-$(CONFIG_XEN_PV) += enlighten_pv.o
+obj-$(CONFIG_XEN_PV) += mmu_pv.o
+obj-$(CONFIG_XEN_PV) += irq.o
+obj-$(CONFIG_XEN_PV) += xen-asm.o
+obj-$(CONFIG_XEN_PV) += xen-asm_$(BITS).o
+
+obj-$(CONFIG_XEN_PVH) += enlighten_pvh.o
+obj-$(CONFIG_XEN_PVH) += xen-pvh.o
+
+obj-$(CONFIG_EVENT_TRACING) += trace.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_XEN_PV_SMP) += smp_pv.o
obj-$(CONFIG_XEN_PVHVM_SMP) += smp_hvm.o
+
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o
+
obj-$(CONFIG_XEN_DEBUG_FS) += debugfs.o
+
obj-$(CONFIG_XEN_DOM0) += vga.o
+
obj-$(CONFIG_SWIOTLB_XEN) += pci-swiotlb-xen.o
+
obj-$(CONFIG_XEN_EFI) += efi.o
-obj-$(CONFIG_XEN_PVH) += xen-pvh.o
--
2.13.7
next prev parent reply other threads:[~2018-07-17 12:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-17 12:01 [PATCH 0/4] xen: various cleanups Juergen Gross
2018-07-17 12:01 ` Juergen Gross [this message]
2018-07-17 19:19 ` [PATCH 1/4] xen: move pv irq related functions under CONFIG_XEN_PV umbrella Boris Ostrovsky
2018-07-18 4:57 ` Juergen Gross
2018-07-17 12:01 ` [PATCH 2/4] xen: move pv specific parts of arch/x86/xen/mmu.c to mmu_pv.c Juergen Gross
2018-07-17 12:01 ` [PATCH 3/4] xen: link platform-pci-unplug.o only if CONFIG_XEN_PVHVM Juergen Gross
2018-07-17 12:01 ` [PATCH 4/4] xen: add SPDX identifier in arch/x86/xen files Juergen Gross
2018-08-07 13:10 ` [PATCH 0/4] xen: various cleanups Juergen Gross
2018-08-07 14:00 ` Boris Ostrovsky
2018-08-07 15:21 ` Juergen Gross
2018-08-07 16:43 ` Boris Ostrovsky
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