Re: [PATCH v4 2/6] x86/sev-es: Disable IRQs while GHCB is active

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jun 11, 2021 at 04:20:36PM +0200, Joerg Roedel wrote:
> I am not a fan of this, because its easily forgotten to add
> local_irq_save()/local_irq_restore() calls around those. Yes, we can add
> irqs_disabled() assertions to the functions, but we can as well just
> disable/enable IRQs in them. Only the previous value of EFLAGS.IF needs
> to be carried from one function to the other.

Wrappers:

	sev_es_get_ghcb():

		local_irq_save()
		__sev_es_get_ghcb()

and the reverse.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette
_______________________________________________
Virtualization mailing list
Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linuxfoundation.org/mailman/listinfo/virtualization



[Index of Archives]     [KVM Development]     [Libvirt Development]     [Libvirt Users]     [CentOS Virtualization]     [Netdev]     [Ethernet Bridging]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux