( ..)φカキカキ
vmx.cのこの行のコンパイルエラーを取るために色々調べたことはメモっとかないと100%忘れそうなのでw
error = vmwrite(VMCS_HOST_TR_BASE, (u_long)PCPU_GET(tssp));
コンパイルエラーはこれ
/usr/src/sys/platform/pc64/vmm/intel/vmx.c:802: error: implicit declaration of function ‘PCPU_GET’ /usr/src/sys/platform/pc64/vmm/intel/vmx.c:802: error: nested extern declaration of ‘PCPU_GET’ /usr/src/sys/platform/pc64/vmm/intel/vmx.c:802: error: ‘tssp’ undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:802: error: (Each undeclared identifier is reported only once /usr/src/sys/platform/pc64/vmm/intel/vmx.c:802: error: for each function it appears in.)
PCPU_GETはマクロでstruct pcpuにあるメンバ変数”pc_tssp”にアクセスするためのもの。 これはFreeBSDだとamd64/include/pcpu.hでこんな感じで定義されてて、このPCPU_MD_FIELDSがsys/pcpu.hのstruct pcpuの定義内で使われてます。
#define PCPU_MD_FIELDS \\ char pc_monitorbuf[128] __aligned(128); /* cache line */ \\ struct pcpu *pc_prvspace; /* Self-reference */ \\ struct pmap *pc_curpmap; \\ struct amd64tss *pc_tssp; /* TSS segment active on CPU */ \\ struct amd64tss *pc_commontssp;/* Common TSS for the CPU */ \\ register_t pc_rsp0; \\ register_t pc_scratch_rsp; /* User %rsp in syscall */ \\ u_int pc_apic_id; \\ u_int pc_acpi_id; /* ACPI CPU id */ \\ /* Pointer to the CPU %fs descriptor */ \\ struct user_segment_descriptor *pc_fs32p; \\ /* Pointer to the CPU %gs descriptor */ \\ struct user_segment_descriptor *pc_gs32p; \\ /* Pointer to the CPU LDT descriptor */ \\ struct system_segment_descriptor *pc_ldt; \\ /* Pointer to the CPU TSS descriptor */ \\ struct system_segment_descriptor *pc_tss; \\ u_int pc_cmci_mask /* MCx banks for CMCI */ \\ PCPU_XEN_FIELDS
なので、DragonFlyでコンパイルするためにはstruct pcpuに該当するものと、pc_tsspの型”struct amd64tss”に該当するものを探さないとだめ。
そして探したところ、platform/pc64/include/globaldata.hにあるstruct mdglobaldataじゃないかとなり、
そのなかのメンバ変数gd_common_tssが当りが怪しい感じ!これの型はstruct x86_64tssだし、これっぽいかなーと。
そうするとvmwrite()のほうも多分これに合わせて修正は必要ですね。
呼び出しするときはlongにキャストしているけど、関数内でどう使ってるかはまだ見てないですが。
さて、このmdglobaldataにアクセスする方法も必要ですねぇ。
ということで探すとこんな感じでアクセスできるのでこれに必要なヘッダは何かというとこれまたglobaldata.hでした。
struct mdglobaldata *gd = mdcpu;
こんなマクロでした。
#define mdcpu ((struct mdglobaldata *)_get_mycpu())
これでコンパイルすると…
-------------------------------------------------------------- >>> Kernel build for BHYVE started on Wed Jul 4 21:51:03 JST 2012 -------------------------------------------------------------- ===> BHYVE cd /usr/src/sys/config; PATH=/usr/obj/usr/src/ctools_x86_64_x86_64/usr/sbin:/usr/obj/usr/src/ctools_x86_64_x86_64/usr/bin:/usr/obj/usr/src/ctools_x86_64_x86_64/bin:/usr/obj/usr/src/ctools_x86_64_x86_64/usr/games:/usr/obj/usr/src/btools_x86_64/usr/sbin:/usr/obj/usr/src/btools_x86_64/usr/bin:/usr/obj/usr/src/btools_x86_64/bin:/usr/obj/usr/src/btools_x86_64/usr/games:/usr/pkg/bin config -d /usr/obj/usr/src/sys/BHYVE /usr/src/sys/config/BHYVE Kernel build directory is /usr/obj/usr/src/sys/BHYVE cd /usr/obj/usr/src/sys/BHYVE; MAKEOBJDIRPREFIX=/usr/obj/usr/src/world_x86_64 OBJTREE=/usr/obj MACHINE_ARCH=x86_64 MACHINE=x86_64 MACHINE_PLATFORM=pc64 OBJFORMAT_PATH=/usr/obj/usr/src/ctools_x86_64_x86_64 HOST_CCVER=gcc44 CCVER=gcc44 BINUTILSVER=binutils221 DESTDIR=/usr/obj/usr/src/world_x86_64 INSTALL="sh /usr/src/tools/install.sh" PATH=/usr/obj/usr/src/ctools_x86_64_x86_64/usr/sbin:/usr/obj/usr/src/ctools_x86_64_x86_64/usr/bin:/usr/obj/usr/src/ctools_x86_64_x86_64/bin:/usr/obj/usr/src/ctools_x86_64_x86_64/usr/games:/usr/obj/usr/src/btools_x86_64/usr/sbin:/usr/obj/usr/src/btools_x86_64/usr/bin:/usr/obj/usr/src/btools_x86_64/bin:/usr/obj/usr/src/btools_x86_64/usr/games:/usr/pkg/bin make KERNEL=kernel all cc -c -O -pipe -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -Wold-style-definition -std=c99 -Wold-style-declaration -g -nostdinc -I. -Iinclude -I/usr/src/sys -I/usr/src/sys/../include -I/usr/obj/usr/src/sys/BHYVE -I"/usr/src/sys/dev/acpica5" -I"/usr/src/sys/contrib/dev/acpica-unix/include" -I/usr/src/sys/dev/netif/ath/hal -I/usr/src/sys/dev/netif/ath/hal/ath_hal -D_KERNEL -include opt_global.h -finline-limit=8000 --param inline-unit-growth=100 --param large-function-growth=1000 -fno-common -ffreestanding -mpreferred-stack-boundary=4 -fno-stack-protector -mcmodel=kernel -mno-red-zone -mfpmath=387 -mno-mmx -mno-3dnow -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -mno-sse4 -mno-sse4a -mno-sse5 -mno-abm -mno-aes -mno-avx -mno-pclmul -mno-popcnt -msoft-float -fno-asynchronous-unwind-tables -fno-omit-frame-pointer /usr/src/sys/platform/pc64/vmm/intel/vmx.c -Werror /usr/src/sys/platform/pc64/vmm/intel/vmx.c:120: error: array type has incomplete element type /usr/src/sys/platform/pc64/vmm/intel/vmx.c:159: error: 'SI_SUB_KLD' undeclared here (not in a function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c: In function 'vmx_set_pcpu_defaults': /usr/src/sys/platform/pc64/vmm/intel/vmx.c:804: error: aggregate value used where an integer was expected cc1: warnings being treated as errors /usr/src/sys/platform/pc64/vmm/intel/vmx.c: In function 'vmx_inject_nmi': /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: implicit declaration of function 'CTR3' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: nested extern declaration of 'CTR3' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: 'KTR_GEN' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: (Each undeclared identifier is reported only once /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: for each function it appears in.) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:931: error: 'curcpu' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c: In function 'vmx_inject_interrupts': /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1010: error: implicit declaration of function 'CTR4' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1010: error: nested extern declaration of 'CTR4' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1010: error: 'KTR_GEN' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1010: error: 'curcpu' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c: In function 'vmx_exit_process': /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1155: error: 'KTR_GEN' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1155: error: 'curcpu' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c: In function 'vmx_run': /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1314: error: 'TDF_ASTPENDING' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1317: error: implicit declaration of function 'enable_intr' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1317: error: nested extern declaration of 'enable_intr' /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1341: error: 'KTR_GEN' undeclared (first use in this function) /usr/src/sys/platform/pc64/vmm/intel/vmx.c:1341: error: 'curcpu' undeclared (first use in this function) *** Error code 1 Stop in /usr/obj/usr/src/sys/BHYVE. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src.
PCPU_GETのところのコンパイルエラー解決キタ━(゜∀゜)━!