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[PATCH 0/8] limit passing around of cpu_user_regs


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 11 Jan 2024 08:21:55 +0100
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  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>
  • Delivery-date: Thu, 11 Jan 2024 07:22:07 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Unlike (synchronous) exception handlers, interrupt handlers don't normally
have a need to know the outer context's register state. Similarly, the vast
majority of key handlers has no need for such.

1: keyhandler: don't pass cpu_user_regs around
2: IRQ: generalize [gs]et_irq_regs()
3: serial: drop serial_rx_fn's regs parameter
4: PV-shim: drop pv_console_rx()'s regs parameter
5: serial: drop serial_[rt]x_interrupt()'s regs parameter
6: IRQ: drop regs parameter from handler functions
7: x86/vPMU: drop regs parameter from interrupt functions
8: x86/APIC: drop regs parameter from direct vector handler functions

Jan



 


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