On 4.06.23 г. 17:27 ч., Kai Huang wrote:
<snip>
---
arch/x86/virt/vmx/tdx/tdx.c | 94 ++++++++++++++++++++++++++++++++++++-
1 file changed, 93 insertions(+), 1 deletion(-)
diff --git a/arch/x86/virt/vmx/tdx/tdx.c b/arch/x86/virt/vmx/tdx/tdx.c
index 7a20c72361e7..fa9fa8bc581a 100644
--- a/arch/x86/virt/vmx/tdx/tdx.c
+++ b/arch/x86/virt/vmx/tdx/tdx.c
@@ -385,6 +385,93 @@ static void free_tdmr_list(struct tdmr_info_list *tdmr_list)
tdmr_list->max_tdmrs * tdmr_list->tdmr_sz);
}
+/* Get the TDMR from the list at the given index. */
+static struct tdmr_info *tdmr_entry(struct tdmr_info_list *tdmr_list,
+ int idx)
+{
+ int tdmr_info_offset = tdmr_list->tdmr_sz * idx;
+
+ return (void *)tdmr_list->tdmrs + tdmr_info_offset;
nit: I would just like to point that sizeof(void *) being treated as 1
is a gcc-specific compiler extension:
https://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Pointer-Arith.html#Pointer-Arith
I don't know if clang treats it the same way, just for the sake of
simplicity you might wanna change this (void *) to (char *).
<snip>
