[PATCH v5 02/19] target/i386/hvf: Use host page alignment in ept_emulation_fault()

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

While on x86 the host page size is fixed to 4KB, it is
better to call qemu_real_host_page_size() for consistency.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/i386/hvf/hvf.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 16febbac48f..9a1bf026a4a 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -76,7 +76,7 @@
 #include "qemu/main-loop.h"
 #include "qemu/accel.h"
 #include "target/i386/cpu.h"
-#include "exec/target_page.h"
+#include "exec/cpu-common.h"
 
 static Error *invtsc_mig_blocker;
 
@@ -137,9 +137,12 @@ static bool ept_emulation_fault(hvf_slot *slot, uint64_t gpa, uint64_t ept_qual)
 
     if (write && slot) {
         if (slot->flags & HVF_SLOT_LOG) {
-            uint64_t dirty_page_start = gpa & ~(TARGET_PAGE_SIZE - 1u);
+            uintptr_t page_size = qemu_real_host_page_size();
+            intptr_t page_mask = -(intptr_t)page_size;
+            uint64_t dirty_page_start = gpa & page_mask;
+
             memory_region_set_dirty(slot->region, gpa - slot->start, 1);
-            hv_vm_protect(dirty_page_start, TARGET_PAGE_SIZE,
+            hv_vm_protect(dirty_page_start, page_size,
                           HV_MEMORY_READ | HV_MEMORY_WRITE | HV_MEMORY_EXEC);
         }
     }
-- 
2.51.0