Displaying 9 results from an estimated 9 matches for "desc_ver".
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desc_ptr
2015 Aug 26
5
[PATCH] Call ExitBootServices twice
From: Sylvain Gault <sylvain.gault at gmail.com>
On some architecture, including my hardware, the function ExitBootServices may
need to be called twice in order to successfully exit the boot services. As
stated by the UEFI spec, the first call to ExitBootServices may perform a
partial shutdown of the services. It seems that during this partial shutdown,
the memory map can be modified, thus
2020 Jun 11
2
[PATCH] efi/main: add retry to exit_boot()
...a748412..d7fb637e 100644
--- a/efi/main.c
+++ b/efi/main.c
@@ -1008,16 +1008,81 @@ static int exit_boot(struct boot_params *bp)
EFI_MEMORY_DESCRIPTOR *map;
EFI_STATUS status;
uint32_t e820_type;
- UINTN i, nr_entries, key, desc_sz;
+ UINTN i, nr_entries, key, desc_sz, buf_sz, map_sz;
UINT32 desc_ver;
+ /*
+ * Call once with empty buffer size to
+ * see how large the buffer should be.
+ */
+ buf_sz = 0;
+ status = uefi_call_wrapper(BS->GetMemoryMap,
+ 5,
+ &buf_sz,
+ map,
+ &key,
+ &desc_sz,
+ &desc_ver);
+ if (!buf_sz)
+ return -1;
+...
2015 Nov 02
3
[PATCH] efi: Call ExitBootServices at least twice
...if
> + * it's too small and always set the allocated size.
> + */
> +static EFI_MEMORY_DESCRIPTOR *
> +get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
> + UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
> + UINT32 *desc_ver)
> +{
> + EFI_STATUS status;
> + UINTN size, allocsizeadd;
> +
> + allocsizeadd = sizeof(*map) * 2;
> +
> + do {
> + size = *allocsize;
> + status = uefi_call_wrapper(BS->GetMemoryMap, 5, &size, map, key,
> +...
2020 Jun 18
0
[PATCH] efi/main: add retry to exit_boot()
...748412..d7fb637e 100644
--- a/efi/main.c
+++ b/efi/main.c
@@ -1008,16 +1008,81 @@ static int exit_boot(struct boot_params *bp)
EFI_MEMORY_DESCRIPTOR *map;
EFI_STATUS status;
uint32_t e820_type;
- UINTN i, nr_entries, key, desc_sz;
+ UINTN i, nr_entries, key, desc_sz, buf_sz, map_sz;
UINT32 desc_ver;
+ /*
+ * Call once with empty buffer size to
+ * see how large the buffer should be.
+ */
+ buf_sz = 0;
+ status = uefi_call_wrapper(BS->GetMemoryMap,
+ 5,
+ &buf_sz,
+ map,
+ &key,
+ &desc_sz,
+ &desc_ver);
+ if (!buf_sz)
+ return -1;
+
+ /*
+ * Allocate a poo...
2015 Aug 26
0
[PATCH] efi: Call ExitBootServices at least twice
...map but try to use the given buffer first, reallocate it if
+ * it's too small and always set the allocated size.
+ */
+static EFI_MEMORY_DESCRIPTOR *
+get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
+ UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
+ UINT32 *desc_ver)
+{
+ EFI_STATUS status;
+ UINTN size, allocsizeadd;
+
+ allocsizeadd = sizeof(*map) * 2;
+
+ do {
+ size = *allocsize;
+ status = uefi_call_wrapper(BS->GetMemoryMap, 5, &size, map, key,
+ desc_sz, desc_ver);
+
+ if (status == EFI_BUFFER_TOO_SMALL) {
+ if (ma...
2015 Sep 16
1
[PATCH] efi: Call ExitBootServices at least twice
...first,
> reallocate it if
> + * it's too small and always set the allocated size.
> + */
> +static EFI_MEMORY_DESCRIPTOR *
> +get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
> + UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
> + UINT32 *desc_ver)
> +{
> + EFI_STATUS status;
> + UINTN size, allocsizeadd;
> +
> + allocsizeadd = sizeof(*map) * 2;
> +
> + do {
> + size = *allocsize;
> + status = uefi_call_wrapper(BS->GetMemoryMap, 5,
> &size, map, key,
> + desc_sz, desc_ver)...
2015 Nov 03
2
[PATCH] efi: Call ExitBootServices at least twice
...ys set the allocated size.
>>> + */
>>> +static EFI_MEMORY_DESCRIPTOR *
>>> +get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
>>> + UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
>>> + UINT32 *desc_ver)
>>> +{
>>> + EFI_STATUS status;
>>> + UINTN size, allocsizeadd;
>>> +
>>> + allocsizeadd = sizeof(*map) * 2;
>>> +
>>> + do {
>>> + size = *allocsize;
>>> + status =...
2015 Nov 03
0
[PATCH] efi: Call ExitBootServices at least twice
...s too small and always set the allocated size.
>> + */
>> +static EFI_MEMORY_DESCRIPTOR *
>> +get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
>> + UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
>> + UINT32 *desc_ver)
>> +{
>> + EFI_STATUS status;
>> + UINTN size, allocsizeadd;
>> +
>> + allocsizeadd = sizeof(*map) * 2;
>> +
>> + do {
>> + size = *allocsize;
>> + status = uefi_call_wrapper(BS->GetMemoryM...
2015 Nov 03
0
[PATCH] efi: Call ExitBootServices at least twice
...size.
>>>> + */
>>>> +static EFI_MEMORY_DESCRIPTOR *
>>>> +get_memory_map_realloc(EFI_MEMORY_DESCRIPTOR *map, UINTN *allocsize,
>>>> + UINTN *nr_entries, UINTN *key, UINTN *desc_sz,
>>>> + UINT32 *desc_ver)
>>>> +{
>>>> + EFI_STATUS status;
>>>> + UINTN size, allocsizeadd;
>>>> +
>>>> + allocsizeadd = sizeof(*map) * 2;
>>>> +
>>>> + do {
>>>> + size = *allocsize;
>&...