Messages in this thread | | | Date | Fri, 03 Nov 2006 12:35:03 -0800 | From | Zachary Amsden <> | Subject | Re: [PATCH 1/7] paravirtualization: header and stubs for paravirtualizing critical operations |
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Andi Kleen wrote: > On Wednesday 01 November 2006 11:27, Rusty Russell wrote: > >> Create a paravirt.h header for all the critical operations which need >> to be replaced with hypervisor calls, and include that instead of >> defining native operations, when CONFIG_PARAVIRT. >> > > Hmm, did this all ever compile in mainline? I had to do a few merges > and in the end i get > > /home/lsrc/quilt/linux/kernel/spinlock.c: In function ‘_spin_lock_irqsave’: > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > include2/asm/spinlock.h:59: error: invalid 'asm': operand number missing after % > -letter > {standard input}: Assembler messages: > {standard input}:593: Error: undefined symbol `paravirt_ops' in operation > {standard input}:593: Error: undefined symbol `PARAVIRT_irq_enable' in operation > {standard input}:605: Error: undefined symbol `paravirt_ops' in operation > {standard input}:605: Error: undefined symbol `PARAVIRT_irq_disable' in operatio > n >
Not seeing that here (on 2.6.19-rc2-mm2 with gcc 4.0.2).
> and lots of new warnings like > > /home/lsrc/quilt/linux/arch/i386/kernel/traps.c: In function ‘set_intr_gate’: > /home/lsrc/quilt/linux/arch/i386/kernel/traps.c:1165: warning: implicit declarat > ion of function ‘_set_gate’ > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/common.c: In function ‘_cpu_init’: > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/common.c:754: warning: implicit decl > aration of function ‘__set_tss_desc' >
Sounds like desc.h got reordered. Somewhere, there was a broken patch once that did this, I thought we fixed that.
> /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c: In function ‘intel_mach > ine_check’: > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.eax’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.ebx’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.ecx’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.edx’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.esi’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.edi’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.ebp’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.esp’ > may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.eflag > s’ may be used uninitialized in this function > /home/lsrc/quilt/linux/arch/i386/kernel/cpu/mcheck/p4.c:158: warning: ‘dbg.eip’ > may be used uninitialized in this function >
Those appear to be valid warnings, with or without paravirt, due to the tacky glued inline oddity of intel_get_extended_msrs.
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