[PATCH v2 1/2] xen/domain: introduce non-x86 hardware emulation flags

[dmkhn@xxxxxxxxx]

From: Denis Mukhin <dmukhin@xxxxxxxx>

Define per-architecture emulation_flags for configuring domain emulation
features.

Print d->arch.emulation_flags from 'q' keyhandler for better traceability
while debugging.

Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
---
Changes since v1:
- dropped comments
---
 xen/arch/arm/include/asm/domain.h   | 1 +
 xen/arch/ppc/include/asm/domain.h   | 1 +
 xen/arch/riscv/include/asm/domain.h | 1 +
 xen/common/keyhandler.c             | 1 +
 4 files changed, 4 insertions(+)

diff --git a/xen/arch/arm/include/asm/domain.h 
b/xen/arch/arm/include/asm/domain.h
index a3487ca713..70e6e7d49b 100644
--- a/xen/arch/arm/include/asm/domain.h
+++ b/xen/arch/arm/include/asm/domain.h
@@ -121,6 +121,7 @@ struct arch_domain
     void *tee;
 #endif
 
+    uint32_t emulation_flags;
 }  __cacheline_aligned;
 
 struct arch_vcpu
diff --git a/xen/arch/ppc/include/asm/domain.h 
b/xen/arch/ppc/include/asm/domain.h
index 3a447272c6..001116a0ab 100644
--- a/xen/arch/ppc/include/asm/domain.h
+++ b/xen/arch/ppc/include/asm/domain.h
@@ -21,6 +21,7 @@ struct arch_vcpu {
 
 struct arch_domain {
     struct hvm_domain hvm;
+    uint32_t emulation_flags;
 };
 
 #include <xen/sched.h>
diff --git a/xen/arch/riscv/include/asm/domain.h 
b/xen/arch/riscv/include/asm/domain.h
index c3d965a559..7bc242da55 100644
--- a/xen/arch/riscv/include/asm/domain.h
+++ b/xen/arch/riscv/include/asm/domain.h
@@ -18,6 +18,7 @@ struct arch_vcpu {
 
 struct arch_domain {
     struct hvm_domain hvm;
+    uint32_t emulation_flags;
 };
 
 #include <xen/sched.h>
diff --git a/xen/common/keyhandler.c b/xen/common/keyhandler.c
index 0bb842ec00..73f5134b68 100644
--- a/xen/common/keyhandler.c
+++ b/xen/common/keyhandler.c
@@ -306,6 +306,7 @@ static void cf_check dump_domains(unsigned char key)
             if ( test_bit(i, &d->watchdog_inuse_map) )
                 printk("    watchdog %d expires in %d seconds\n",
                        i, (u32)((d->watchdog_timer[i].expires - NOW()) >> 30));
+        printk("    emulation_flags %#x\n", d->arch.emulation_flags);
 
         arch_dump_domain_info(d);
 
-- 
2.34.1