Re: [PATCH 11/70] x86/boot/compressed/64: Disable red-zone usage

2020-03-31 Thread Borislav Petkov
On Thu, Mar 19, 2020 at 10:13:08AM +0100, Joerg Roedel wrote: > From: Joerg Roedel > > The x86-64 ABI defines a red-zone on the stack: > > The 128-byte area beyond the location pointed to by %rsp is > considered to be reserved and shall not be modified by signal or > interrupt handlers.

[PATCH 11/70] x86/boot/compressed/64: Disable red-zone usage

2020-03-19 Thread Joerg Roedel
From: Joerg Roedel The x86-64 ABI defines a red-zone on the stack: The 128-byte area beyond the location pointed to by %rsp is considered to be reserved and shall not be modified by signal or interrupt handlers. 10 Therefore, functions may use this area for temporary data that is not