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Re: [PATCH v2 2/7] xen/arm: acpi: The fixmap area should always be cleared during failure/unmap
- To: Stefano Stabellini <sstabellini@xxxxxxxxxx>
- From: Julien Grall <julien@xxxxxxx>
- Date: Fri, 30 Oct 2020 18:21:53 +0000
- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, alex.bennee@xxxxxxxxxx, masami.hiramatsu@xxxxxxxxxx, ehem+xen@xxxxxxx, bertrand.marquis@xxxxxxx, andre.przywara@xxxxxxx, Rahul.Singh@xxxxxxx, Julien Grall <jgrall@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Wei Xu <xuwei5@xxxxxxxxxxxxx>
- Delivery-date: Fri, 30 Oct 2020 18:22:18 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi Stefano,
On 24/10/2020 01:16, Stefano Stabellini wrote:
On Fri, 23 Oct 2020, Julien Grall wrote:
bool __acpi_unmap_table(const void *ptr, unsigned long size)
{
vaddr_t vaddr = (vaddr_t)ptr;
+ unsigned int idx;
+
+ /* We are only handling fixmap address in the arch code */
+ if ( (vaddr < FIXMAP_ADDR(FIXMAP_ACPI_BEGIN)) ||
+ (vaddr >= FIXMAP_ADDR(FIXMAP_ACPI_END)) )
Is it missing "+ PAGE_SIZE"?
if ( (vaddr < FIXMAP_ADDR(FIXMAP_ACPI_BEGIN)) ||
(vaddr >= FIXMAP_ADDR(FIXMAP_ACPI_END) + PAGE_SIZE) )
Yes it should be + PAGE_SIZE. Do you mind if I fix it on commit?
Cheers,
--
Julien Grall
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