Re: [PATCH] xen/arm: call uaccess_ttbr0_enable for dm_op hypercall

2025-05-15 Thread Jürgen Groß
On 12.05.25 23:54, Stefano Stabellini wrote: From: Stefano Stabellini dm_op hypercalls might come from userspace and pass memory addresses as parameters. The memory addresses typically correspond to buffers allocated in userspace to hold extra hypercall parameters. On ARM, when CONFIG_ARM64_SW

[PATCH] xen/arm: call uaccess_ttbr0_enable for dm_op hypercall

2025-05-12 Thread Stefano Stabellini
From: Stefano Stabellini dm_op hypercalls might come from userspace and pass memory addresses as parameters. The memory addresses typically correspond to buffers allocated in userspace to hold extra hypercall parameters. On ARM, when CONFIG_ARM64_SW_TTBR0_PAN is enabled, they might not be access