Hi Bhupinder,
On 15/12/16 11:23, Bhupinder Thakur wrote:.
+ * VMIDs.
+ */
+if ( !vmid_8_bit )
+max_vmid = MAX_VMID_16_BIT;
+
/* pa_range is 4 bits, but the defined encodings are only 3 bits */
if ( pa_range&0x8 || !pa_range_info[pa_range].pabits )
panic("
Hi Julien,
On 15 December 2016 at 16:00, Julien Grall wrote:
> Hi Bhupinder,
>
> On 15/12/16 06:13, Bhupinder Thakur wrote:
>>
>> +
>> +/* set a flag if the current cpu does not suppot 16 bit VMIDs */
>> +if ( info->mm64.vmid_bits != MM64_VMID_16_BITS_SUPPORT )
>> +v
Hi Julien,
>> -#define MAX_VMID 256
>> -#define INVALID_VMID 0 /* VMID 0 is reserved */
>>
>> static spinlock_t vmid_alloc_lock = SPIN_LOCK_UNLOCKED;
>>
>> /*
>> - * VTTBR_EL2 VMID field is 8 bits. Using a bitmap here limits us to
>> - * 256 concurrent domains.
>> + * VTTBR_EL2 VMID field is 8
Hi Bhupinder,
On 15/12/16 06:13, Bhupinder Thakur wrote:
+
+/* set a flag if the current cpu does not suppot 16 bit VMIDs */
+if ( info->mm64.vmid_bits != MM64_VMID_16_BITS_SUPPORT )
+vmid_8_bit = true;
}
+/*
I just spot a trailing white space here while t
Hi Bhupinder,
On 15/12/16 06:13, Bhupinder Thakur wrote:
VMID space is increased to 16-bits from 8-bits in ARMv8 8.1 revision.
This allows more than 256 VMs to be supported by Xen.
This change adds support for 16-bit VMIDs in Xen based on whether the
architecture supports it.
Signed-off-by: Bh
VMID space is increased to 16-bits from 8-bits in ARMv8 8.1 revision.
This allows more than 256 VMs to be supported by Xen.
This change adds support for 16-bit VMIDs in Xen based on whether the
architecture supports it.
Signed-off-by: Bhupinder Thakur
---
xen/arch/arm/p2m.c | 45 ++
