[PATCH 1/2] Revert "xen/arm: platform: Drop the quirks callback"

[Stefano Stabellini <sstabellini@kernel.org>]

This reverts commit 14fa16961b03a23e9b883e5f0ed06b6837a489d8.
Do not reintroduce platform_dom0_evtchn_ppi.

Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
---
 xen/arch/arm/platform.c        | 10 ++++++++++
 xen/include/asm-arm/platform.h |  7 +++++++
 2 files changed, 17 insertions(+)

diff --git a/xen/arch/arm/platform.c b/xen/arch/arm/platform.c
index b0bfaa9..0af6d57 100644
--- a/xen/arch/arm/platform.c
+++ b/xen/arch/arm/platform.c
@@ -127,6 +127,16 @@ void platform_poweroff(void)
         platform->poweroff();
 }
 
+bool_t platform_has_quirk(uint32_t quirk)
+{
+    uint32_t quirks = 0;
+
+    if ( platform && platform->quirks )
+        quirks = platform->quirks();
+
+    return !!(quirks & quirk);
+}
+
 bool_t platform_device_is_blacklisted(const struct dt_device_node *node)
 {
     const struct dt_device_match *blacklist = NULL;
diff --git a/xen/include/asm-arm/platform.h b/xen/include/asm-arm/platform.h
index f97315d..c6e5010 100644
--- a/xen/include/asm-arm/platform.h
+++ b/xen/include/asm-arm/platform.h
@@ -27,6 +27,12 @@ struct platform_desc {
     /* Platform power-off */
     void (*poweroff)(void);
     /*
+     * Platform quirks
+     * Defined has a function because a platform can support multiple
+     * board with different quirk on each
+     */
+    uint32_t (*quirks)(void);
+    /*
      * Platform blacklist devices
      * List of devices which must not pass-through to a guest
      */
@@ -42,6 +48,7 @@ int platform_cpu_up(int cpu);
 #endif
 void platform_reset(void);
 void platform_poweroff(void);
+bool_t platform_has_quirk(uint32_t quirk);
 bool_t platform_device_is_blacklisted(const struct dt_device_node *node);
 
 #define PLATFORM_START(_name, _namestr)                         \
-- 
1.9.1


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