diff mbox series

[08/36] arm/vuart: make domain_has_vuart() public

Message ID 20241126-vuart-ns8250-v1-v1-8-87b9a8375b7a@ford.com (mailing list archive)
State New
Headers show
Series Introduce NS8250 UART emulator | expand

Commit Message

Denis Mukhin via B4 Relay Nov. 26, 2024, 11:21 p.m. UTC 
From: Denis Mukhin <dmukhin@ford.com>

Move domain_has_vuart() to arch namespace as preparation code change for
architecture-agnostic way of forwarding physical console to the guest OS w/
in-hypervisor UART emulator.

Signed-off-by: Denis Mukhin <dmukhin@ford.com>
---
 xen/arch/arm/include/asm/domain.h | 9 +++++++++
 xen/arch/arm/vpl011.c             | 2 ++
 xen/arch/arm/vuart.c              | 4 ++--
 3 files changed, 13 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/xen/arch/arm/include/asm/domain.h b/xen/arch/arm/include/asm/domain.h
index f1d72c6e48dfeba347b4cd091ca33603c368b7c0..2bbd3f472176bdcfbc0f95f9d8809343d11965c8 100644
--- a/xen/arch/arm/include/asm/domain.h
+++ b/xen/arch/arm/include/asm/domain.h
@@ -119,8 +119,17 @@  struct arch_domain
     void *tee;
 #endif
 
+    /* Emulated devices enabled bitmap. */
+    uint32_t emulation_flags;
+
 }  __cacheline_aligned;
 
+enum {
+    ARM_EMU_VUART           = BIT(0, U),
+};
+
+#define domain_has_vuart(d)     (!!((d)->arch.emulation_flags & ARM_EMU_VUART))
+
 struct arch_vcpu
 {
     struct {
diff --git a/xen/arch/arm/vpl011.c b/xen/arch/arm/vpl011.c
index 8ade6f2588b8bbcc58fb0f9edc324502a1992ce7..140dca48e0a3901cba289dbc6eb117358134d917 100644
--- a/xen/arch/arm/vpl011.c
+++ b/xen/arch/arm/vpl011.c
@@ -730,6 +730,8 @@  int domain_vpl011_init(struct domain *d, struct vpl011_init_info *info)
     register_mmio_handler(d, &vpl011_mmio_handler,
                           vpl011->base_addr, GUEST_PL011_SIZE, NULL);
 
+    d->arch.emulation_flags |= ARM_EMU_VUART;
+
     return 0;
 
 out1:
diff --git a/xen/arch/arm/vuart.c b/xen/arch/arm/vuart.c
index 38ce8cc14fac4132578059b696be952b29fab809..8ca8ae5523a7924846df4324f9e0a81f225756ad 100644
--- a/xen/arch/arm/vuart.c
+++ b/xen/arch/arm/vuart.c
@@ -31,8 +31,6 @@ 
 
 #include "vuart.h"
 
-#define domain_has_vuart(d) ((d)->arch.vuart.info != NULL)
-
 static int vuart_mmio_read(struct vcpu *v, mmio_info_t *info,
                            register_t *r, void *priv);
 static int vuart_mmio_write(struct vcpu *v, mmio_info_t *info,
@@ -63,6 +61,8 @@  int domain_vuart_init(struct domain *d)
                           d->arch.vuart.info->size,
                           NULL);
 
+    d->arch.emulation_flags |= ARM_EMU_VUART;
+
     return 0;
 }